1623401120 has 96 divisors (see below), whose sum is σ = 4208137920. Its totient is φ = 586915840.

The previous prime is 1623401081. The next prime is 1623401123. The reversal of 1623401120 is 211043261.

1623401120 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1623401092 and 1623401101.

It is not an unprimeable number, because it can be changed into a prime (1623401123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312464 + ... + 317616.

It is an arithmetic number, because the mean of its divisors is an integer number (43834770).

Almost surely, 2^1623401120 is an apocalyptic number.

1623401120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1623401120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104068960).

1623401120 is an abundant number, since it is smaller than the sum of its proper divisors (2584736800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1623401120 is a wasteful number, since it uses less digits than its factorization.

1623401120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5358 (or 5350 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1623401120 is about 40291.4521952237. The cubic root of 1623401120 is about 1175.2816273779.

Adding to 1623401120 its reverse (211043261), we get a palindrome (1834444381).

The spelling of 1623401120 in words is "one billion, six hundred twenty-three million, four hundred one thousand, one hundred twenty".