40071879 has 6 divisors (see below), whose sum is σ = 57881616. Its totient is φ = 26714580.

The previous prime is 40071859. The next prime is 40071887. The reversal of 40071879 is 97817004.

It is not a de Polignac number, because 40071879 - 2⁵ = 40071847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40071859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2226207 + ... + 2226224.

It is an arithmetic number, because the mean of its divisors is an integer number (9646936).

Almost surely, 2^40071879 is an apocalyptic number.

40071879 is a deficient number, since it is larger than the sum of its proper divisors (17809737).

40071879 is a wasteful number, since it uses less digits than its factorization.

40071879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452437 (or 4452434 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 40071879 is about 6330.2353036834. The cubic root of 40071879 is about 342.1999190213.

It can be divided in two parts, 4007 and 1879, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 40071879 in words is "forty million, seventy-one thousand, eight hundred seventy-nine".