165942444 has 24 divisors (see below), whose sum is σ = 387415728. Its totient is φ = 55283200.

The previous prime is 165942419. The next prime is 165942463. The reversal of 165942444 is 444249561.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31144 + ... + 36080.

It is an arithmetic number, because the mean of its divisors is an integer number (16142322).

Almost surely, 2^165942444 is an apocalyptic number.

It is an amenable number.

165942444 is an abundant number, since it is smaller than the sum of its proper divisors (221473284).

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

165942444 is a wasteful number, since it uses less digits than its factorization.

165942444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7745 (or 7743 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 165942444 is about 12881.8649270981. The cubic root of 165942444 is about 549.5229405975.

The spelling of 165942444 in words is "one hundred sixty-five million, nine hundred forty-two thousand, four hundred forty-four".