40879357 has 4 divisors (see below), whose sum is σ = 42289020. Its totient is φ = 39469696.

The previous prime is 40879309. The next prime is 40879367. The reversal of 40879357 is 75397804.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6610041 + 34269316 = 2571^2 + 5854^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40879357 is a prime.

It is a super-2 number, since 2×40879357² = 3342243657466898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40879367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704788 + ... + 704845.

It is an arithmetic number, because the mean of its divisors is an integer number (10572255).

Almost surely, 2^40879357 is an apocalyptic number.

It is an amenable number.

40879357 is a deficient number, since it is larger than the sum of its proper divisors (1409663).

40879357 is a wasteful number, since it uses less digits than its factorization.

40879357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409662.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 40879357 is about 6393.6966615566. The cubic root of 40879357 is about 344.4831777192.

The spelling of 40879357 in words is "forty million, eight hundred seventy-nine thousand, three hundred fifty-seven".