90210022 has 8 divisors (see below), whose sum is σ = 154645776. Its totient is φ = 38661432.

The previous prime is 90210017. The next prime is 90210023. The reversal of 90210022 is 22001209.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 90209978 and 90210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90210023) 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, 3221773 + ... + 3221800.

It is an arithmetic number, because the mean of its divisors is an integer number (19330722).

Almost surely, 2^90210022 is an apocalyptic number.

90210022 is a deficient number, since it is larger than the sum of its proper divisors (64435754).

90210022 is a wasteful number, since it uses less digits than its factorization.

90210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443582.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 90210022 is about 9497.8956616716. The cubic root of 90210022 is about 448.4887940702.

The spelling of 90210022 in words is "ninety million, two hundred ten thousand, twenty-two".