90283438 has 32 divisors (see below), whose sum is σ = 162547200. Its totient is φ = 36789984.

The previous prime is 90283397. The next prime is 90283451. The reversal of 90283438 is 83438209.

It is a junction number, because it is equal to n+sod(n) for n = 90283397 and 90283406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25543 + ... + 28861.

It is an arithmetic number, because the mean of its divisors is an integer number (5079600).

Almost surely, 2^90283438 is an apocalyptic number.

90283438 is a deficient number, since it is larger than the sum of its proper divisors (72263762).

90283438 is a wasteful number, since it uses less digits than its factorization.

90283438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 90283438 is about 9501.7597317550. The cubic root of 90283438 is about 448.6104262512.

The spelling of 90283438 in words is "ninety million, two hundred eighty-three thousand, four hundred thirty-eight".