981258472 has 8 divisors (see below), whose sum is σ = 1839859650. Its totient is φ = 490629232.

The previous prime is 981258461. The next prime is 981258491. The reversal of 981258472 is 274852189.

It can be written as a sum of positive squares in only one way, i.e., 650964196 + 330294276 = 25514^2 + 18174^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61328647 + ... + 61328662.

Almost surely, 2^981258472 is an apocalyptic number.

It is an amenable number.

981258472 is a deficient number, since it is larger than the sum of its proper divisors (858601178).

981258472 is a wasteful number, since it uses less digits than its factorization.

981258472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122657315 (or 122657311 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 981258472 is about 31325.0454429040. The cubic root of 981258472 is about 993.7133852944.

The spelling of 981258472 in words is "nine hundred eighty-one million, two hundred fifty-eight thousand, four hundred seventy-two".