90115942 has 16 divisors (see below), whose sum is σ = 158660640. Its totient is φ = 37577088.

The previous prime is 90115933. The next prime is 90115943. The reversal of 90115942 is 24951109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90115943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86467 + ... + 87502.

It is an arithmetic number, because the mean of its divisors is an integer number (9916290).

Almost surely, 2^90115942 is an apocalyptic number.

90115942 is a deficient number, since it is larger than the sum of its proper divisors (68544698).

90115942 is a wasteful number, since it uses less digits than its factorization.

90115942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174015.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 90115942 is about 9492.9416937006. The cubic root of 90115942 is about 448.3328302379.

The spelling of 90115942 in words is "ninety million, one hundred fifteen thousand, nine hundred forty-two".