90942345 has 80 divisors (see below), whose sum is σ = 183439872. Its totient is φ = 42768000.

The previous prime is 90942311. The next prime is 90942349. The reversal of 90942345 is 54324909.

It is not a de Polignac number, because 90942345 - 2¹³ = 90934153 is a prime.

It is a super-2 number, since 2×90942345² = 16541020228198050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90942349) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 120720 + ... + 121470.

Almost surely, 2^90942345 is an apocalyptic number.

It is an amenable number.

90942345 is an abundant number, since it is smaller than the sum of its proper divisors (92497527).

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

90942345 is a wasteful number, since it uses less digits than its factorization.

90942345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 90942345 is about 9536.3695922505. The cubic root of 90942345 is about 449.6991322195.

The spelling of 90942345 in words is "ninety million, nine hundred forty-two thousand, three hundred forty-five".