90012300 has 72 divisors (see below), whose sum is σ = 297647616. Its totient is φ = 20573760.

The previous prime is 90012283. The next prime is 90012301. The reversal of 90012300 is 321009.

It is a Harshad number since it is a multiple of its sum of digits (15).

90012300 is a modest number, since divided by 12300 gives 900 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 90012300.

It is not an unprimeable number, because it can be changed into a prime (90012301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19332 + ... + 23531.

Almost surely, 2^90012300 is an apocalyptic number.

It is an amenable number.

90012300 is an abundant number, since it is smaller than the sum of its proper divisors (207635316).

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

90012300 is a wasteful number, since it uses less digits than its factorization.

90012300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42887 (or 42880 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 90012300 is about 9487.4812252779. The cubic root of 90012300 is about 448.1608890140.

Adding to 90012300 its reverse (321009), we get a palindrome (90333309).

The spelling of 90012300 in words is "ninety million, twelve thousand, three hundred".