90609942 has 8 divisors (see below), whose sum is σ = 181219896. Its totient is φ = 30203312.

The previous prime is 90609859. The next prime is 90609943. The reversal of 90609942 is 24990609.

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

90609942 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 90609942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90609943) by changing a digit.

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, 7550823 + ... + 7550834.

It is an arithmetic number, because the mean of its divisors is an integer number (22652487).

Almost surely, 2^90609942 is an apocalyptic number.

90609942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90609942 is a wasteful number, since it uses less digits than its factorization.

90609942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15101662.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 90609942 is about 9518.9254645679. The cubic root of 90609942 is about 449.1505654902.

The spelling of 90609942 in words is "ninety million, six hundred nine thousand, nine hundred forty-two".