492721944 has 64 divisors (see below), whose sum is σ = 1447165440. Its totient is φ = 137823360.

The previous prime is 492721903. The next prime is 492721951. The reversal of 492721944 is 449127294.

It is a junction number, because it is equal to n+sod(n) for n = 492721896 and 492721905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68352 + ... + 75215.

It is an arithmetic number, because the mean of its divisors is an integer number (22611960).

Almost surely, 2^492721944 is an apocalyptic number.

492721944 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

492721944 is an abundant number, since it is smaller than the sum of its proper divisors (954443496).

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

492721944 is a wasteful number, since it uses less digits than its factorization.

492721944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143600 (or 143596 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 492721944 is about 22197.3409218312. The cubic root of 492721944 is about 789.8306233046.

The spelling of 492721944 in words is "four hundred ninety-two million, seven hundred twenty-one thousand, nine hundred forty-four".