40752731 has 2 divisors, whose sum is σ = 40752732. Its totient is φ = 40752730.

The previous prime is 40752727. The next prime is 40752737. The reversal of 40752731 is 13725704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40752731 - 2² = 40752727 is a prime.

It is a super-2 number, since 2×40752731² = 3321570167916722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40752694 and 40752703.

It is not a weakly prime, because it can be changed into another prime (40752737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20376365 + 20376366.

It is an arithmetic number, because the mean of its divisors is an integer number (20376366).

Almost surely, 2^40752731 is an apocalyptic number.

40752731 is a deficient number, since it is larger than the sum of its proper divisors (1).

40752731 is an equidigital number, since it uses as much as digits as its factorization.

40752731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 40752731 is about 6383.7865722469. The cubic root of 40752731 is about 344.1271247974.

The spelling of 40752731 in words is "forty million, seven hundred fifty-two thousand, seven hundred thirty-one".