40152985 has 16 divisors (see below), whose sum is σ = 51442560. Its totient is φ = 29998080.

The previous prime is 40152961. The next prime is 40152989. The reversal of 40152985 is 58925104.

It is not a de Polignac number, because 40152985 - 2⁵ = 40152953 is a prime.

It is a super-2 number, since 2×40152985² = 3224524408820450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40152985.

It is not an unprimeable number, because it can be changed into a prime (40152989) 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, 3769 + ... + 9721.

It is an arithmetic number, because the mean of its divisors is an integer number (3215160).

Almost surely, 2^40152985 is an apocalyptic number.

It is an amenable number.

40152985 is a deficient number, since it is larger than the sum of its proper divisors (11289575).

40152985 is a wasteful number, since it uses less digits than its factorization.

40152985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6048.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 40152985 is about 6336.6383043377. The cubic root of 40152985 is about 342.4306357835.

The spelling of 40152985 in words is "forty million, one hundred fifty-two thousand, nine hundred eighty-five".