90637340 has 12 divisors (see below), whose sum is σ = 190338456. Its totient is φ = 36254928.

The previous prime is 90637307. The next prime is 90637369. The reversal of 90637340 is 4373609.

It is a junction number, because it is equal to n+sod(n) for n = 90637297 and 90637306.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2265914 + ... + 2265953.

It is an arithmetic number, because the mean of its divisors is an integer number (15861538).

Almost surely, 2^90637340 is an apocalyptic number.

It is an amenable number.

90637340 is an abundant number, since it is smaller than the sum of its proper divisors (99701116).

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

90637340 is a wasteful number, since it uses less digits than its factorization.

90637340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531876 (or 4531874 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 90637340 is about 9520.3644888208. The cubic root of 90637340 is about 449.1958312627.

The spelling of 90637340 in words is "ninety million, six hundred thirty-seven thousand, three hundred forty".