297749322 has 144 divisors (see below), whose sum is σ = 770416920. Its totient is φ = 82317312.

The previous prime is 297749311. The next prime is 297749359. The reversal of 297749322 is 223947792.

It can be written as a sum of positive squares in 12 ways, for example, as 12173121 + 285576201 = 3489^2 + 16899^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3345454 + ... + 3345542.

Almost surely, 2^297749322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 297749322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385208460).

297749322 is an abundant number, since it is smaller than the sum of its proper divisors (472667598).

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

297749322 is a wasteful number, since it uses less digits than its factorization.

297749322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 153 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 297749322 is about 17255.4142807410. The cubic root of 297749322 is about 667.7546593863.

The spelling of 297749322 in words is "two hundred ninety-seven million, seven hundred forty-nine thousand, three hundred twenty-two".