40572015 has 64 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 18547200.

The previous prime is 40571987. The next prime is 40572019. The reversal of 40572015 is 51027504.

40572015 = 235² + 236² + ... + 512².

It is not a de Polignac number, because 40572015 - 2⁷ = 40571887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40572019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 291816 + ... + 291954.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^40572015 is an apocalyptic number.

40572015 is a deficient number, since it is larger than the sum of its proper divisors (34423185).

40572015 is a wasteful number, since it uses less digits than its factorization.

40572015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 40572015 is about 6369.6165504683. The cubic root of 40572015 is about 343.6176993904.

Adding to 40572015 its reverse (51027504), we get a palindrome (91599519).

The spelling of 40572015 in words is "forty million, five hundred seventy-two thousand, fifteen".