981811452 has 24 divisors (see below), whose sum is σ = 2292014032. Its totient is φ = 327110400.

The previous prime is 981811427. The next prime is 981811463. The reversal of 981811452 is 254118189.

It is a self number, because there is not a number n which added to its sum of digits gives 981811452.

It is a congruent number.

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, 7002 + ... + 44862.

Almost surely, 2^981811452 is an apocalyptic number.

It is an amenable number.

981811452 is an abundant number, since it is smaller than the sum of its proper divisors (1310202580).

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

981811452 is a wasteful number, since it uses less digits than its factorization.

981811452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40029 (or 40027 counting only the distinct ones).

The product of its digits is 23040, while the sum is 39.

The square root of 981811452 is about 31333.8706833356. The cubic root of 981811452 is about 993.9000165280.

The spelling of 981811452 in words is "nine hundred eighty-one million, eight hundred eleven thousand, four hundred fifty-two".