90863040 has 56 divisors (see below), whose sum is σ = 288493200. Its totient is φ = 24229888.

The previous prime is 90863033. The next prime is 90863051. The reversal of 90863040 is 4036809.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 90862989 and 90863007.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 46365 + ... + 48284.

Almost surely, 2^90863040 is an apocalyptic number.

It is an amenable number.

90863040 is an abundant number, since it is smaller than the sum of its proper divisors (197630160).

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

90863040 is a wasteful number, since it uses less digits than its factorization.

90863040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94669 (or 94659 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 90863040 is about 9532.2106565057. The cubic root of 90863040 is about 449.5683762579.

Adding to 90863040 its reverse (4036809), we get a palindrome (94899849).

The spelling of 90863040 in words is "ninety million, eight hundred sixty-three thousand, forty".