90259458 has 32 divisors (see below), whose sum is σ = 186243840. Its totient is φ = 29145600.

The previous prime is 90259447. The next prime is 90259459. The reversal of 90259458 is 85495209.

It is not an unprimeable number, because it can be changed into a prime (90259459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26898 + ... + 30066.

It is an arithmetic number, because the mean of its divisors is an integer number (5820120).

Almost surely, 2^90259458 is an apocalyptic number.

90259458 is an abundant number, since it is smaller than the sum of its proper divisors (95984382).

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

90259458 is a wasteful number, since it uses less digits than its factorization.

90259458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 90259458 is about 9500.4977764326. The cubic root of 90259458 is about 448.5707045672.

The spelling of 90259458 in words is "ninety million, two hundred fifty-nine thousand, four hundred fifty-eight".