90245692 has 24 divisors (see below), whose sum is σ = 161925120. Its totient is φ = 43994160.

The previous prime is 90245689. The next prime is 90245699. The reversal of 90245692 is 29654209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90245699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28467 + ... + 31477.

It is an arithmetic number, because the mean of its divisors is an integer number (6746880).

Almost surely, 2^90245692 is an apocalyptic number.

It is an amenable number.

90245692 is a deficient number, since it is larger than the sum of its proper divisors (71679428).

90245692 is a wasteful number, since it uses less digits than its factorization.

90245692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 90245692 is about 9499.7732604521. The cubic root of 90245692 is about 448.5478986902.

The spelling of 90245692 in words is "ninety million, two hundred forty-five thousand, six hundred ninety-two".