90219374 has 16 divisors (see below), whose sum is σ = 163759968. Its totient is φ = 36390912.

The previous prime is 90219373. The next prime is 90219397. The reversal of 90219374 is 47391209.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90219373) by changing a digit.

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, 189299 + ... + 189774.

It is an arithmetic number, because the mean of its divisors is an integer number (10234998).

Almost surely, 2^90219374 is an apocalyptic number.

90219374 is a deficient number, since it is larger than the sum of its proper divisors (73540594).

90219374 is a wasteful number, since it uses less digits than its factorization.

90219374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379099.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 90219374 is about 9498.3879684923. The cubic root of 90219374 is about 448.5042916915.

The spelling of 90219374 in words is "ninety million, two hundred nineteen thousand, three hundred seventy-four".