40079715 has 16 divisors (see below), whose sum is σ = 69060768. Its totient is φ = 19731456.

The previous prime is 40079687. The next prime is 40079717. The reversal of 40079715 is 51797004.

It is not a de Polignac number, because 40079715 - 2⁶ = 40079651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40079717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102574 + ... + 102963.

It is an arithmetic number, because the mean of its divisors is an integer number (4316298).

Almost surely, 2^40079715 is an apocalyptic number.

40079715 is a deficient number, since it is larger than the sum of its proper divisors (28981053).

40079715 is a wasteful number, since it uses less digits than its factorization.

40079715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205558.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 40079715 is about 6330.8542077669. The cubic root of 40079715 is about 342.2222231397. Note that the first 5 decimals are identical.

The spelling of 40079715 in words is "forty million, seventy-nine thousand, seven hundred fifteen".