40920732 has 36 divisors (see below), whose sum is σ = 104240136. Its totient is φ = 13534560.

The previous prime is 40920727. The next prime is 40920739. The reversal of 40920732 is 23702904.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 40920696 and 40920705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40920739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378 + ... + 9054.

Almost surely, 2^40920732 is an apocalyptic number.

It is an amenable number.

40920732 is an abundant number, since it is smaller than the sum of its proper divisors (63319404).

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

40920732 is a wasteful number, since it uses less digits than its factorization.

40920732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8818 (or 8813 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 40920732 is about 6396.9314518760. The cubic root of 40920732 is about 344.5993584897.

The spelling of 40920732 in words is "forty million, nine hundred twenty thousand, seven hundred thirty-two".