90210464 has 24 divisors (see below), whose sum is σ = 177836148. Its totient is φ = 45045760.

The previous prime is 90210433. The next prime is 90210467. The reversal of 90210464 is 46401209.

It can be written as a sum of positive squares in 2 ways, for example, as 87984400 + 2226064 = 9380^2 + 1492^2 .

It is not an unprimeable number, because it can be changed into a prime (90210467) 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 3 ways as a sum of consecutive naturals, for example, 32624 + ... + 35280.

Almost surely, 2^90210464 is an apocalyptic number.

It is an amenable number.

90210464 is a deficient number, since it is larger than the sum of its proper divisors (87625684).

90210464 is a wasteful number, since it uses less digits than its factorization.

90210464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728 (or 3720 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 90210464 is about 9497.9189299551. The cubic root of 90210464 is about 448.4895265525.

The spelling of 90210464 in words is "ninety million, two hundred ten thousand, four hundred sixty-four".