90472254 has 16 divisors (see below), whose sum is σ = 182144640. Its totient is φ = 29957400.

The previous prime is 90472223. The next prime is 90472259. The reversal of 90472254 is 45227409.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90472259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49024 + ... + 50835.

It is an arithmetic number, because the mean of its divisors is an integer number (11384040).

Almost surely, 2^90472254 is an apocalyptic number.

90472254 is an abundant number, since it is smaller than the sum of its proper divisors (91672386).

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

90472254 is a wasteful number, since it uses less digits than its factorization.

90472254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100015.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 90472254 is about 9511.6903860460. The cubic root of 90472254 is about 448.9229451618.

The spelling of 90472254 in words is "ninety million, four hundred seventy-two thousand, two hundred fifty-four".