79541380 has 12 divisors (see below), whose sum is σ = 167036940. Its totient is φ = 31816544.

The previous prime is 79541321. The next prime is 79541459. The reversal of 79541380 is 8314597.

It can be written as a sum of positive squares in 2 ways, for example, as 57881664 + 21659716 = 7608^2 + 4654^2 .

It is a super-2 number, since 2×79541380² = 12653662264608800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988515 + ... + 1988554.

It is an arithmetic number, because the mean of its divisors is an integer number (13919745).

Almost surely, 2^79541380 is an apocalyptic number.

It is an amenable number.

79541380 is an abundant number, since it is smaller than the sum of its proper divisors (87495560).

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

79541380 is a wasteful number, since it uses less digits than its factorization.

79541380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977078 (or 3977076 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 79541380 is about 8918.5974233620. The cubic root of 79541380 is about 430.0619705169.

The spelling of 79541380 in words is "seventy-nine million, five hundred forty-one thousand, three hundred eighty".