90563240 has 16 divisors (see below), whose sum is σ = 203767380. Its totient is φ = 36225280.

The previous prime is 90563237. The next prime is 90563257. The reversal of 90563240 is 4236509.

It can be written as a sum of positive squares in 2 ways, for example, as 85784644 + 4778596 = 9262^2 + 2186^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1132001 + ... + 1132080.

Almost surely, 2^90563240 is an apocalyptic number.

It is an amenable number.

90563240 is an abundant number, since it is smaller than the sum of its proper divisors (113204140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90563240 is a wasteful number, since it uses less digits than its factorization.

90563240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264092 (or 2264088 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 90563240 is about 9516.4720353711. The cubic root of 90563240 is about 449.0733854585.

Adding to 90563240 its reverse (4236509), we get a palindrome (94799749).

The spelling of 90563240 in words is "ninety million, five hundred sixty-three thousand, two hundred forty".