90472464 has 50 divisors (see below), whose sum is σ = 261857310. Its totient is φ = 30157056.

The previous prime is 90472463. The next prime is 90472483. The reversal of 90472464 is 46427409.

It can be written as a sum of positive squares in only one way, i.e., 87609600 + 2862864 = 9360^2 + 1692^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (90472463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33609 + ... + 36200.

Almost surely, 2^90472464 is an apocalyptic number.

It is an amenable number.

90472464 is an abundant number, since it is smaller than the sum of its proper divisors (171384846).

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

90472464 is a wasteful number, since it uses less digits than its factorization.

90472464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69829 (or 69814 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 90472464 is about 9511.7014250869. The cubic root of 90472464 is about 448.9232925013.

It can be divided in two parts, 9047 and 2464, that added together give a palindrome (11511).

The spelling of 90472464 in words is "ninety million, four hundred seventy-two thousand, four hundred sixty-four".