297724672 has 144 divisors (see below), whose sum is σ = 746141760. Its totient is φ = 115605504.

The previous prime is 297724663. The next prime is 297724697. The reversal of 297724672 is 276427792.

Its product of digits (592704) is a multiple of the sum of its prime divisors (392).

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, 883288 + ... + 883624.

It is an arithmetic number, because the mean of its divisors is an integer number (5181540).

Almost surely, 2^297724672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 297724672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373070880).

297724672 is an abundant number, since it is smaller than the sum of its proper divisors (448417088).

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

297724672 is a wasteful number, since it uses less digits than its factorization.

297724672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 392 counting only the distinct ones).

The product of its digits is 592704, while the sum is 46.

The square root of 297724672 is about 17254.6999973920. The cubic root of 297724672 is about 667.7362315731.

The spelling of 297724672 in words is "two hundred ninety-seven million, seven hundred twenty-four thousand, six hundred seventy-two".