90380830 has 16 divisors (see below), whose sum is σ = 163929744. Its totient is φ = 35875840.

The previous prime is 90380803. The next prime is 90380887. The reversal of 90380830 is 3808309.

It is a junction number, because it is equal to n+sod(n) for n = 90380792 and 90380801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33187 + ... + 35806.

It is an arithmetic number, because the mean of its divisors is an integer number (10245609).

Almost surely, 2^90380830 is an apocalyptic number.

90380830 is a deficient number, since it is larger than the sum of its proper divisors (73548914).

90380830 is a wasteful number, since it uses less digits than its factorization.

90380830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69131.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 90380830 is about 9506.8832958020. The cubic root of 90380830 is about 448.7716790296.

The spelling of 90380830 in words is "ninety million, three hundred eighty thousand, eight hundred thirty".