40307752 has 16 divisors (see below), whose sum is σ = 75938400. Its totient is φ = 20057520.

The previous prime is 40307749. The next prime is 40307801. The reversal of 40307752 is 25770304.

It is a self number, because there is not a number n which added to its sum of digits gives 40307752.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10252 + ... + 13627.

It is an arithmetic number, because the mean of its divisors is an integer number (4746150).

Almost surely, 2^40307752 is an apocalyptic number.

It is an amenable number.

40307752 is a deficient number, since it is larger than the sum of its proper divisors (35630648).

40307752 is a wasteful number, since it uses less digits than its factorization.

40307752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24096 (or 24092 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 40307752 is about 6348.8386339550. The cubic root of 40307752 is about 342.8700304018.

It can be divided in two parts, 4030 and 7752, that multiplied together give a triangular number (31240560 = T₇₉₀₄).

The spelling of 40307752 in words is "forty million, three hundred seven thousand, seven hundred fifty-two".