90010028 has 12 divisors (see below), whose sum is σ = 157776360. Its totient is φ = 44931072.

The previous prime is 90010027. The next prime is 90010031. The reversal of 90010028 is 82001009.

It is a junction number, because it is equal to n+sod(n) for n = 90009991 and 90010009.

It is not an unprimeable number, because it can be changed into a prime (90010027) 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, 15701 + ... + 20652.

It is an arithmetic number, because the mean of its divisors is an integer number (13148030).

Almost surely, 2^90010028 is an apocalyptic number.

It is an amenable number.

90010028 is a deficient number, since it is larger than the sum of its proper divisors (67766332).

90010028 is a wasteful number, since it uses less digits than its factorization.

90010028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36976 (or 36974 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 90010028 is about 9487.3614877900. The cubic root of 90010028 is about 448.1571183068.

The spelling of 90010028 in words is "ninety million, ten thousand, twenty-eight".