40137632 has 12 divisors (see below), whose sum is σ = 79021026. Its totient is φ = 20068800.

The previous prime is 40137613. The next prime is 40137667. The reversal of 40137632 is 23673104.

It can be written as a sum of positive squares in only one way, i.e., 25361296 + 14776336 = 5036^2 + 3844^2 .

It is a super-2 number, since 2×40137632² = 3222059005134848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627119 + ... + 627182.

Almost surely, 2^40137632 is an apocalyptic number.

It is an amenable number.

40137632 is a deficient number, since it is larger than the sum of its proper divisors (38883394).

40137632 is a wasteful number, since it uses less digits than its factorization.

40137632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254311 (or 1254303 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 40137632 is about 6335.4267417436. The cubic root of 40137632 is about 342.3869859962.

The spelling of 40137632 in words is "forty million, one hundred thirty-seven thousand, six hundred thirty-two".