90146228 has 12 divisors (see below), whose sum is σ = 157853472. Its totient is φ = 45045240.

The previous prime is 90146219. The next prime is 90146261. The reversal of 90146228 is 82264109.

It is a junction number, because it is equal to n+sod(n) for n = 90146194 and 90146203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433 + ... + 13503.

It is an arithmetic number, because the mean of its divisors is an integer number (13154456).

Almost surely, 2^90146228 is an apocalyptic number.

It is an amenable number.

90146228 is a deficient number, since it is larger than the sum of its proper divisors (67707244).

90146228 is a wasteful number, since it uses less digits than its factorization.

90146228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13942 (or 13940 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 90146228 is about 9494.5367448865. The cubic root of 90146228 is about 448.3830495701.

The spelling of 90146228 in words is "ninety million, one hundred forty-six thousand, two hundred twenty-eight".