90901470 has 32 divisors (see below), whose sum is σ = 237997440. Its totient is φ = 22036640.

The previous prime is 90901463. The next prime is 90901493. The reversal of 90901470 is 7410909.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

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, 137400 + ... + 138059.

It is an arithmetic number, because the mean of its divisors is an integer number (7437420).

Almost surely, 2^90901470 is an apocalyptic number.

90901470 is an abundant number, since it is smaller than the sum of its proper divisors (147095970).

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

90901470 is a wasteful number, since it uses less digits than its factorization.

90901470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275480.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 90901470 is about 9534.2262402358. The cubic root of 90901470 is about 449.6317481106.

The spelling of 90901470 in words is "ninety million, nine hundred one thousand, four hundred seventy".