40161924 has 36 divisors (see below), whose sum is σ = 110750640. Its totient is φ = 12170160.

The previous prime is 40161889. The next prime is 40161959. The reversal of 40161924 is 42916104.

40161924 is a `hidden beast` number, since 40 + 1 + 619 + 2 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (40161889) and next prime (40161959).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×40161924² = 3225960278763552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50314 + ... + 51105.

Almost surely, 2^40161924 is an apocalyptic number.

40161924 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40161924 is an abundant number, since it is smaller than the sum of its proper divisors (70588716).

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

40161924 is a wasteful number, since it uses less digits than its factorization.

40161924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101440 (or 101435 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40161924 is about 6337.3436075378. The cubic root of 40161924 is about 342.4560449391.

The spelling of 40161924 in words is "forty million, one hundred sixty-one thousand, nine hundred twenty-four".