981540272 has 40 divisors (see below), whose sum is σ = 1987131744. Its totient is φ = 468790784.

The previous prime is 981540233. The next prime is 981540277. The reversal of 981540272 is 272045189.

It is not an unprimeable number, because it can be changed into a prime (981540277) 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 7 ways as a sum of consecutive naturals, for example, 371468 + ... + 374100.

Almost surely, 2^981540272 is an apocalyptic number.

981540272 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

981540272 is an abundant number, since it is smaller than the sum of its proper divisors (1005591472).

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

981540272 is a wasteful number, since it uses less digits than its factorization.

981540272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677 (or 3671 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 981540272 is about 31329.5431182774. The cubic root of 981540272 is about 993.8085017997.

The spelling of 981540272 in words is "nine hundred eighty-one million, five hundred forty thousand, two hundred seventy-two".