90215274 has 8 divisors (see below), whose sum is σ = 180430560. Its totient is φ = 30071756.

The previous prime is 90215261. The next prime is 90215291. The reversal of 90215274 is 47251209.

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

90215274 is an admirable 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, 7517934 + ... + 7517945.

It is an arithmetic number, because the mean of its divisors is an integer number (22553820).

Almost surely, 2^90215274 is an apocalyptic number.

90215274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

90215274 is a wasteful number, since it uses less digits than its factorization.

90215274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15035884.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 90215274 is about 9498.1721399436. The cubic root of 90215274 is about 448.4974975283.

The spelling of 90215274 in words is "ninety million, two hundred fifteen thousand, two hundred seventy-four".