90484440 has 32 divisors (see below), whose sum is σ = 271453680. Its totient is φ = 24129152.

The previous prime is 90484399. The next prime is 90484453. The reversal of 90484440 is 4448409.

It is a super-2 number, since 2×90484440² = 16374867764227200, which contains 22 as substring.

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, 376899 + ... + 377138.

Almost surely, 2^90484440 is an apocalyptic number.

It is an amenable number.

90484440 is an abundant number, since it is smaller than the sum of its proper divisors (180969240).

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

90484440 is a wasteful number, since it uses less digits than its factorization.

90484440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754051 (or 754047 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 90484440 is about 9512.3309446213. The cubic root of 90484440 is about 448.9430998839.

The spelling of 90484440 in words is "ninety million, four hundred eighty-four thousand, four hundred forty".