40740732 has 30 divisors (see below), whose sum is σ = 106505168. Its totient is φ = 13580136.

The previous prime is 40740719. The next prime is 40740767. The reversal of 40740732 is 23704704.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40740696 and 40740705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 62548 + ... + 63195.

Almost surely, 2^40740732 is an apocalyptic number.

It is an amenable number.

40740732 is an abundant number, since it is smaller than the sum of its proper divisors (65764436).

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

40740732 is a wasteful number, since it uses less digits than its factorization.

40740732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125759 (or 125748 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 40740732 is about 6382.8467003368. The cubic root of 40740732 is about 344.0933472109.

The spelling of 40740732 in words is "forty million, seven hundred forty thousand, seven hundred thirty-two".