40165952 has 14 divisors (see below), whose sum is σ = 79704438. Its totient is φ = 20082944.

The previous prime is 40165949. The next prime is 40165969. The reversal of 40165952 is 25956104.

It is a happy number.

40165952 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 22052416 + 18113536 = 4696^2 + 4256^2 .

It is a super-2 number, since 2×40165952² = 3226607400132608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313733 + ... + 313860.

Almost surely, 2^40165952 is an apocalyptic number.

It is an amenable number.

40165952 is a deficient number, since it is larger than the sum of its proper divisors (39538486).

40165952 is an equidigital number, since it uses as much as digits as its factorization.

40165952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627605 (or 627595 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 40165952 is about 6337.6613983393. The cubic root of 40165952 is about 342.4674933185.

The spelling of 40165952 in words is "forty million, one hundred sixty-five thousand, nine hundred fifty-two".