90903480 has 64 divisors (see below), whose sum is σ = 277875360. Its totient is φ = 23781888.

The previous prime is 90903479. The next prime is 90903541. The reversal of 90903480 is 8430909.

It is a super-2 number, since 2×90903480² = 16526885352220800, 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 15 ways as a sum of consecutive naturals, for example, 787 + ... + 13506.

Almost surely, 2^90903480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90903480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138937680).

90903480 is an abundant number, since it is smaller than the sum of its proper divisors (186971880).

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

90903480 is a wasteful number, since it uses less digits than its factorization.

90903480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360 (or 14356 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 90903480 is about 9534.3316493606. The cubic root of 90903480 is about 449.6350621500.

The spelling of 90903480 in words is "ninety million, nine hundred three thousand, four hundred eighty".