40370724 has 30 divisors (see below), whose sum is σ = 105537894. Its totient is φ = 13456800.

The previous prime is 40370723. The next prime is 40370741. The reversal of 40370724 is 42707304.

It can be written as a sum of positive squares in only one way, i.e., 33177600 + 7193124 = 5760^2 + 2682^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40370723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61977 + ... + 62624.

Almost surely, 2^40370724 is an apocalyptic number.

It is an amenable number.

40370724 is an abundant number, since it is smaller than the sum of its proper divisors (65167170).

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

40370724 is a wasteful number, since it uses less digits than its factorization.

40370724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124617 (or 124606 counting only the distinct ones).

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

The square root of 40370724 is about 6353.7960307205. The cubic root of 40370724 is about 343.0484905109.

The spelling of 40370724 in words is "forty million, three hundred seventy thousand, seven hundred twenty-four".