40372057 has 8 divisors (see below), whose sum is σ = 44764992. Its totient is φ = 36099600.

The previous prime is 40372051. The next prime is 40372067. The reversal of 40372057 is 75027304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40372057 is a prime.

It is a super-2 number, since 2×40372057² = 3259805972822498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40372051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29413 + ... + 30754.

It is an arithmetic number, because the mean of its divisors is an integer number (5595624).

Almost surely, 2^40372057 is an apocalyptic number.

It is an amenable number.

40372057 is a deficient number, since it is larger than the sum of its proper divisors (4392935).

40372057 is a wasteful number, since it uses less digits than its factorization.

40372057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60239.

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

The square root of 40372057 is about 6353.9009277766. The cubic root of 40372057 is about 343.0522661728.

The spelling of 40372057 in words is "forty million, three hundred seventy-two thousand, fifty-seven".