981481456 has 20 divisors (see below), whose sum is σ = 1907824072. Its totient is φ = 489139776.

The previous prime is 981481441. The next prime is 981481469. The reversal of 981481456 is 654184189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94995 + ... + 104818.

Almost surely, 2^981481456 is an apocalyptic number.

It is an amenable number.

981481456 is a deficient number, since it is larger than the sum of its proper divisors (926342616).

981481456 is a wasteful number, since it uses less digits than its factorization.

981481456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200128 (or 200122 counting only the distinct ones).

The product of its digits is 276480, while the sum is 46.

The square root of 981481456 is about 31328.6044374785. The cubic root of 981481456 is about 993.7886510236.

The spelling of 981481456 in words is "nine hundred eighty-one million, four hundred eighty-one thousand, four hundred fifty-six".