90300428 has 12 divisors (see below), whose sum is σ = 158144280. Its totient is φ = 45116352.

The previous prime is 90300421. The next prime is 90300433. The reversal of 90300428 is 82400309.

It is a junction number, because it is equal to n+sod(n) for n = 90300397 and 90300406.

It is not an unprimeable number, because it can be changed into a prime (90300421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901 + ... + 13572.

It is an arithmetic number, because the mean of its divisors is an integer number (13178690).

Almost surely, 2^90300428 is an apocalyptic number.

It is an amenable number.

90300428 is a deficient number, since it is larger than the sum of its proper divisors (67843852).

90300428 is a wasteful number, since it uses less digits than its factorization.

90300428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16936 (or 16934 counting only the distinct ones).

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

The square root of 90300428 is about 9502.6537346154. The cubic root of 90300428 is about 448.6385650891.

The spelling of 90300428 in words is "ninety million, three hundred thousand, four hundred twenty-eight".