168425972 has 48 divisors (see below), whose sum is σ = 347851392. Its totient is φ = 70346880.

The previous prime is 168425947. The next prime is 168425977. The reversal of 168425972 is 279524861.

It is a happy number.

It is a super-3 number, since 3×168425972³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168425977) 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, 157913 + ... + 158975.

It is an arithmetic number, because the mean of its divisors is an integer number (7246904).

Almost surely, 2^168425972 is an apocalyptic number.

It is an amenable number.

168425972 is an abundant number, since it is smaller than the sum of its proper divisors (179425420).

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

168425972 is a wasteful number, since it uses less digits than its factorization.

168425972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368 (or 1366 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 168425972 is about 12977.9032204744. The cubic root of 168425972 is about 552.2508005805.

The spelling of 168425972 in words is "one hundred sixty-eight million, four hundred twenty-five thousand, nine hundred seventy-two".