1623143424 has 264 divisors, whose sum is σ = 5174947008. Its totient is φ = 450723840.

The previous prime is 1623143411. The next prime is 1623143429. The reversal of 1623143424 is 4243413261.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1623143391 and 1623143400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623143429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6171517 + ... + 6171779.

It is an arithmetic number, because the mean of its divisors is an integer number (19602072).

Almost surely, 2^1623143424 is an apocalyptic number.

1623143424 is a gapful number since it is divisible by the number (14) 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 1623143424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2587473504).

1623143424 is an abundant number, since it is smaller than the sum of its proper divisors (3551803584).

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

1623143424 is a wasteful number, since it uses less digits than its factorization.

1623143424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 316 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 1623143424 is about 40288.2541691744. The cubic root of 1623143424 is about 1175.2194366687.

Adding to 1623143424 its reverse (4243413261), we get a palindrome (5866556685).

The spelling of 1623143424 in words is "one billion, six hundred twenty-three million, one hundred forty-three thousand, four hundred twenty-four".