40879020 has 96 divisors (see below), whose sum is σ = 140894208. Its totient is φ = 8623872.

The previous prime is 40878997. The next prime is 40879021. The reversal of 40879020 is 2097804.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (40879021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1717 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (1467648).

Almost surely, 2^40879020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40879020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70447104).

40879020 is an abundant number, since it is smaller than the sum of its proper divisors (100015188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40879020 is a wasteful number, since it uses less digits than its factorization.

40879020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7519 (or 7517 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 40879020 is about 6393.6703074212. The cubic root of 40879020 is about 344.4822311033.

The spelling of 40879020 in words is "forty million, eight hundred seventy-nine thousand, twenty".