40738536 has 24 divisors (see below), whose sum is σ = 110333730. Its totient is φ = 13579488.

The previous prime is 40738513. The next prime is 40738547. The reversal of 40738536 is 63583704.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39312900 + 1425636 = 6270^2 + 1194^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40738536.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282835 + ... + 282978.

Almost surely, 2^40738536 is an apocalyptic number.

It is an amenable number.

40738536 is an abundant number, since it is smaller than the sum of its proper divisors (69595194).

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

40738536 is a wasteful number, since it uses less digits than its factorization.

40738536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565825 (or 565818 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 40738536 is about 6382.6746744605. The cubic root of 40738536 is about 344.0871646795.

The spelling of 40738536 in words is "forty million, seven hundred thirty-eight thousand, five hundred thirty-six".