981481530 has 32 divisors (see below), whose sum is σ = 2457972864. Its totient is φ = 250348736.

The previous prime is 981481477. The next prime is 981481559. The reversal of 981481530 is 35184189.

It is a super-2 number, since 2×981481530² = 1926611987462281800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710529 + ... + 711908.

It is an arithmetic number, because the mean of its divisors is an integer number (76811652).

Almost surely, 2^981481530 is an apocalyptic number.

981481530 is an abundant number, since it is smaller than the sum of its proper divisors (1476491334).

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

981481530 is a wasteful number, since it uses less digits than its factorization.

981481530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422470.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 981481530 is about 31328.6056185078. The cubic root of 981481530 is about 993.7886759996.

The spelling of 981481530 in words is "nine hundred eighty-one million, four hundred eighty-one thousand, five hundred thirty".