90810942 has 16 divisors (see below), whose sum is σ = 185049360. Its totient is φ = 29699072.

The previous prime is 90810911. The next prime is 90810949. The reversal of 90810942 is 24901809.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90810949) 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, 142467 + ... + 143102.

It is an arithmetic number, because the mean of its divisors is an integer number (11565585).

Almost surely, 2^90810942 is an apocalyptic number.

90810942 is an abundant number, since it is smaller than the sum of its proper divisors (94238418).

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

90810942 is a wasteful number, since it uses less digits than its factorization.

90810942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285627.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 90810942 is about 9529.4775302742. The cubic root of 90810942 is about 449.4824370572.

The spelling of 90810942 in words is "ninety million, eight hundred ten thousand, nine hundred forty-two".