90979442 has 8 divisors (see below), whose sum is σ = 136512000. Its totient is φ = 45475444.

The previous prime is 90979439. The next prime is 90979453. The reversal of 90979442 is 24497909.

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

It is a junction number, because it is equal to n+sod(n) for n = 90979393 and 90979402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4859 + ... + 14337.

It is an arithmetic number, because the mean of its divisors is an integer number (17064000).

Almost surely, 2^90979442 is an apocalyptic number.

90979442 is a deficient number, since it is larger than the sum of its proper divisors (45532558).

90979442 is a wasteful number, since it uses less digits than its factorization.

90979442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14280.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 90979442 is about 9538.3144213220. The cubic root of 90979442 is about 449.7602706651.

The spelling of 90979442 in words is "ninety million, nine hundred seventy-nine thousand, four hundred forty-two".