90740450 has 12 divisors (see below), whose sum is σ = 168777330. Its totient is φ = 36296160.

The previous prime is 90740431. The next prime is 90740453. The reversal of 90740450 is 5404709.

It can be written as a sum of positive squares in 3 ways, for example, as 88529281 + 2211169 = 9409^2 + 1487^2 .

It is not an unprimeable number, because it can be changed into a prime (90740453) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 907355 + ... + 907454.

Almost surely, 2^90740450 is an apocalyptic number.

90740450 is a deficient number, since it is larger than the sum of its proper divisors (78036880).

90740450 is a wasteful number, since it uses less digits than its factorization.

90740450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814821 (or 1814816 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 90740450 is about 9525.7781834347. The cubic root of 90740450 is about 449.3661033597.

The spelling of 90740450 in words is "ninety million, seven hundred forty thousand, four hundred fifty".