40979530 has 8 divisors (see below), whose sum is σ = 73763172. Its totient is φ = 16391808.

The previous prime is 40979527. The next prime is 40979539. The reversal of 40979530 is 3597904.

It can be written as a sum of positive squares in 2 ways, for example, as 40793769 + 185761 = 6387^2 + 431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40979530.

It is not an unprimeable number, because it can be changed into a prime (40979539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2048967 + ... + 2048986.

Almost surely, 2^40979530 is an apocalyptic number.

40979530 is a deficient number, since it is larger than the sum of its proper divisors (32783642).

40979530 is a wasteful number, since it uses less digits than its factorization.

40979530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097960.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 40979530 is about 6401.5255994177. The cubic root of 40979530 is about 344.7643283008.

The spelling of 40979530 in words is "forty million, nine hundred seventy-nine thousand, five hundred thirty".