90254290 has 32 divisors (see below), whose sum is σ = 186024960. Its totient is φ = 30884544.

The previous prime is 90254267. The next prime is 90254317. The reversal of 90254290 is 9245209.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 50431 + ... + 52189.

It is an arithmetic number, because the mean of its divisors is an integer number (5813280).

Almost surely, 2^90254290 is an apocalyptic number.

90254290 is an abundant number, since it is smaller than the sum of its proper divisors (95770670).

90254290 is a wasteful number, since it uses less digits than its factorization.

90254290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 90254290 is about 9500.2257867905. The cubic root of 90254290 is about 448.5621431093.

Adding to 90254290 its reverse (9245209), we get a palindrome (99499499).

The spelling of 90254290 in words is "ninety million, two hundred fifty-four thousand, two hundred ninety".