40576939 has 4 divisors (see below), whose sum is σ = 43698256. Its totient is φ = 37455624.

The previous prime is 40576937. The next prime is 40576961. The reversal of 40576939 is 93967504.

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 40576939 - 2¹ = 40576937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40576895 and 40576904.

It is not an unprimeable number, because it can be changed into a prime (40576937) 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, 1560639 + ... + 1560664.

It is an arithmetic number, because the mean of its divisors is an integer number (10924564).

Almost surely, 2^40576939 is an apocalyptic number.

40576939 is a deficient number, since it is larger than the sum of its proper divisors (3121317).

40576939 is a wasteful number, since it uses less digits than its factorization.

40576939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121316.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 40576939 is about 6370.0030612238. The cubic root of 40576939 is about 343.6315998183.

The spelling of 40576939 in words is "forty million, five hundred seventy-six thousand, nine hundred thirty-nine".