921344492 has 6 divisors (see below), whose sum is σ = 1612352868. Its totient is φ = 460672244.

The previous prime is 921344491. The next prime is 921344513. The reversal of 921344492 is 294443129.

It is not an unprimeable number, because it can be changed into a prime (921344491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115168058 + ... + 115168065.

It is an arithmetic number, because the mean of its divisors is an integer number (268725478).

Almost surely, 2^921344492 is an apocalyptic number.

It is an amenable number.

921344492 is a deficient number, since it is larger than the sum of its proper divisors (691008376).

921344492 is a wasteful number, since it uses less digits than its factorization.

921344492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230336127 (or 230336125 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 921344492 is about 30353.6569790198. The cubic root of 921344492 is about 973.0623774569.

The spelling of 921344492 in words is "nine hundred twenty-one million, three hundred forty-four thousand, four hundred ninety-two".