90228630 has 16 divisors (see below), whose sum is σ = 216548784. Its totient is φ = 24060960.

The previous prime is 90228629. The next prime is 90228647. The reversal of 90228630 is 3682209.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 3007621 = 90228630 / (9 + 0 + 2 + 2 + 8 + 6 + 3 + 0).

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, 1503781 + ... + 1503840.

It is an arithmetic number, because the mean of its divisors is an integer number (13534299).

Almost surely, 2^90228630 is an apocalyptic number.

90228630 is an abundant number, since it is smaller than the sum of its proper divisors (126320154).

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

90228630 is a wasteful number, since it uses less digits than its factorization.

90228630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007631.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 90228630 is about 9498.8751965693. The cubic root of 90228630 is about 448.5196291724.

The spelling of 90228630 in words is "ninety million, two hundred twenty-eight thousand, six hundred thirty".