40056379 has 4 divisors (see below), whose sum is σ = 43697880. Its totient is φ = 36414880.

The previous prime is 40056281. The next prime is 40056383. The reversal of 40056379 is 97365004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40056379 - 2¹⁷ = 39925307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40056479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1820734 + ... + 1820755.

It is an arithmetic number, because the mean of its divisors is an integer number (10924470).

Almost surely, 2^40056379 is an apocalyptic number.

40056379 is a deficient number, since it is larger than the sum of its proper divisors (3641501).

40056379 is a wasteful number, since it uses less digits than its factorization.

40056379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641500.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 40056379 is about 6329.0109021868. The cubic root of 40056379 is about 342.1557917937.

The spelling of 40056379 in words is "forty million, fifty-six thousand, three hundred seventy-nine".