40356724 has 12 divisors (see below), whose sum is σ = 70686784. Its totient is φ = 20160504.

The previous prime is 40356721. The next prime is 40356731. The reversal of 40356724 is 42765304.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40356721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507 + ... + 9109.

Almost surely, 2^40356724 is an apocalyptic number.

It is an amenable number.

40356724 is a deficient number, since it is larger than the sum of its proper divisors (30330060).

40356724 is a wasteful number, since it uses less digits than its factorization.

40356724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8934 (or 8932 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 40356724 is about 6352.6942315840. The cubic root of 40356724 is about 343.0088311269.

The spelling of 40356724 in words is "forty million, three hundred fifty-six thousand, seven hundred twenty-four".