90534238 has 8 divisors (see below), whose sum is σ = 136116288. Its totient is φ = 45162144.

The previous prime is 90534193. The next prime is 90534239. The reversal of 90534238 is 83243509.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90534239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51406 + ... + 53137.

It is an arithmetic number, because the mean of its divisors is an integer number (17014536).

Almost surely, 2^90534238 is an apocalyptic number.

90534238 is a deficient number, since it is larger than the sum of its proper divisors (45582050).

90534238 is a wasteful number, since it uses less digits than its factorization.

90534238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104978.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 90534238 is about 9514.9481343831. The cubic root of 90534238 is about 449.0254432071.

The spelling of 90534238 in words is "ninety million, five hundred thirty-four thousand, two hundred thirty-eight".