1623170472 has 384 divisors, whose sum is σ = 5587678080. Its totient is φ = 390297600.

The previous prime is 1623170459. The next prime is 1623170473. The reversal of 1623170472 is 2740713261.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1623170473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26609322 + ... + 26609382.

It is an arithmetic number, because the mean of its divisors is an integer number (14551245).

Almost surely, 2^1623170472 is an apocalyptic number.

1623170472 is a gapful number since it is divisible by the number (12) 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 1623170472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2793839040).

1623170472 is an abundant number, since it is smaller than the sum of its proper divisors (3964507608).

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

1623170472 is a wasteful number, since it uses less digits than its factorization.

1623170472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 1623170472 is about 40288.5898487401. The cubic root of 1623170472 is about 1175.2259645697.

The spelling of 1623170472 in words is "one billion, six hundred twenty-three million, one hundred seventy thousand, four hundred seventy-two".