90938450 has 12 divisors (see below), whose sum is σ = 169145610. Its totient is φ = 36375360.

The previous prime is 90938447. The next prime is 90938453. The reversal of 90938450 is 5483909.

It is an interprime number because it is at equal distance from previous prime (90938447) and next prime (90938453).

It can be written as a sum of positive squares in 3 ways, for example, as 38651089 + 52287361 = 6217^2 + 7231^2 .

It is not an unprimeable number, because it can be changed into a prime (90938453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 909335 + ... + 909434.

Almost surely, 2^90938450 is an apocalyptic number.

90938450 is a deficient number, since it is larger than the sum of its proper divisors (78207160).

90938450 is a wasteful number, since it uses less digits than its factorization.

90938450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818781 (or 1818776 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 90938450 is about 9536.1653718882. The cubic root of 90938450 is about 449.6927120231.

The spelling of 90938450 in words is "ninety million, nine hundred thirty-eight thousand, four hundred fifty".