981349492 has 12 divisors (see below), whose sum is σ = 1717635780. Its totient is φ = 490596416.

The previous prime is 981349417. The next prime is 981349493. The reversal of 981349492 is 294943189.

It can be written as a sum of positive squares in 2 ways, for example, as 566249616 + 415099876 = 23796^2 + 20374^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981349493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15648 + ... + 46984.

It is an arithmetic number, because the mean of its divisors is an integer number (143136315).

Almost surely, 2^981349492 is an apocalyptic number.

It is an amenable number.

981349492 is a deficient number, since it is larger than the sum of its proper divisors (736286288).

981349492 is a wasteful number, since it uses less digits than its factorization.

981349492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39170 (or 39168 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 981349492 is about 31326.4982403077. The cubic root of 981349492 is about 993.7441094439.

The spelling of 981349492 in words is "nine hundred eighty-one million, three hundred forty-nine thousand, four hundred ninety-two".