981395372 has 24 divisors (see below), whose sum is σ = 1886438400. Its totient is φ = 444658896.

The previous prime is 981395369. The next prime is 981395381. The reversal of 981395372 is 273593189.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278972 + ... + 282467.

It is an arithmetic number, because the mean of its divisors is an integer number (78601600).

Almost surely, 2^981395372 is an apocalyptic number.

981395372 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

981395372 is a deficient number, since it is larger than the sum of its proper divisors (905043028).

981395372 is a wasteful number, since it uses less digits than its factorization.

981395372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561485 (or 561483 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 981395372 is about 31327.2305191506. The cubic root of 981395372 is about 993.7595956934.

The spelling of 981395372 in words is "nine hundred eighty-one million, three hundred ninety-five thousand, three hundred seventy-two".