90274538 has 8 divisors (see below), whose sum is σ = 138714660. Its totient is φ = 44036320.

The previous prime is 90274537. The next prime is 90274553. The reversal of 90274538 is 83547209.

It can be written as a sum of positive squares in 2 ways, for example, as 67683529 + 22591009 = 8227^2 + 4753^2 .

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

It is a super-2 number, since 2×90274538² = 16298984422226888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (90274531) 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, 550373 + ... + 550536.

Almost surely, 2^90274538 is an apocalyptic number.

90274538 is a deficient number, since it is larger than the sum of its proper divisors (48440122).

90274538 is a wasteful number, since it uses less digits than its factorization.

90274538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100952.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 90274538 is about 9501.2913859117. The cubic root of 90274538 is about 448.5956846623.

It can be divided in two parts, 902 and 74538, that multiplied together give a palindrome (67233276).

The spelling of 90274538 in words is "ninety million, two hundred seventy-four thousand, five hundred thirty-eight".