40572215 has 8 divisors (see below), whose sum is σ = 49159968. Its totient is φ = 32142240.

The previous prime is 40572197. The next prime is 40572229. The reversal of 40572215 is 51227504.

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

It is not a de Polignac number, because 40572215 - 2⁸ = 40571959 is a prime.

It is a super-2 number, since 2×40572215² = 3292209260012450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38876 + ... + 39905.

It is an arithmetic number, because the mean of its divisors is an integer number (6144996).

Almost surely, 2^40572215 is an apocalyptic number.

40572215 is a deficient number, since it is larger than the sum of its proper divisors (8587753).

40572215 is a wasteful number, since it uses less digits than its factorization.

40572215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78889.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 40572215 is about 6369.6322499812. The cubic root of 40572215 is about 343.6182640114.

Adding to 40572215 its reverse (51227504), we get a palindrome (91799719).

The spelling of 40572215 in words is "forty million, five hundred seventy-two thousand, two hundred fifteen".