90079140 has 48 divisors (see below), whose sum is σ = 252665280. Its totient is φ = 23978880.

The previous prime is 90079139. The next prime is 90079151. The reversal of 90079140 is 4197009.

It is a super-2 number, since 2×90079140² = 16228502926279200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 90079098 and 90079107.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 48835 + ... + 50645.

It is an arithmetic number, because the mean of its divisors is an integer number (5263860).

Almost surely, 2^90079140 is an apocalyptic number.

It is an amenable number.

90079140 is an abundant number, since it is smaller than the sum of its proper divisors (162586140).

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

90079140 is a wasteful number, since it uses less digits than its factorization.

90079140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652 (or 2650 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 90079140 is about 9491.0031082073. The cubic root of 90079140 is about 448.2717911254.

The spelling of 90079140 in words is "ninety million, seventy-nine thousand, one hundred forty".