90040852 has 24 divisors (see below), whose sum is σ = 175144032. Its totient is φ = 40154400.

The previous prime is 90040813. The next prime is 90040871. The reversal of 90040852 is 25804009.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90040852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16974 + ... + 21637.

It is an arithmetic number, because the mean of its divisors is an integer number (7297668).

Almost surely, 2^90040852 is an apocalyptic number.

It is an amenable number.

90040852 is a deficient number, since it is larger than the sum of its proper divisors (85103180).

90040852 is a wasteful number, since it uses less digits than its factorization.

90040852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38679 (or 38677 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 90040852 is about 9488.9858256823. The cubic root of 90040852 is about 448.2082697127.

The spelling of 90040852 in words is "ninety million, forty thousand, eight hundred fifty-two".