981520488 has 48 divisors (see below), whose sum is σ = 2862770820. Its totient is φ = 302006016.

The previous prime is 981520433. The next prime is 981520493. The reversal of 981520488 is 884025189.

It is a happy number.

981520488 is a `hidden beast` number, since 9 + 81 + 520 + 48 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 814645764 + 166874724 = 28542^2 + 12918^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 523381 + ... + 525252.

Almost surely, 2^981520488 is an apocalyptic number.

It is an amenable number.

981520488 is an abundant number, since it is smaller than the sum of its proper divisors (1881250332).

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

981520488 is a wasteful number, since it uses less digits than its factorization.

981520488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048658 (or 1048651 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 981520488 is about 31329.2273763653. The cubic root of 981520488 is about 993.8018246617.

It can be divided in two parts, 9815 and 20488, that added together give a palindrome (30303).

The spelling of 981520488 in words is "nine hundred eighty-one million, five hundred twenty thousand, four hundred eighty-eight".