1997324252 has 36 divisors (see below), whose sum is σ = 4390819440. Its totient is φ = 778176960.

The previous prime is 1997324149. The next prime is 1997324257. The reversal of 1997324252 is 2524237991.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997324257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291377 + ... + 298152.

Almost surely, 2^1997324252 is an apocalyptic number.

It is an amenable number.

1997324252 is an abundant number, since it is smaller than the sum of its proper divisors (2393495188).

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

1997324252 is a wasteful number, since it uses less digits than its factorization.

1997324252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589562 (or 589549 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The square root of 1997324252 is about 44691.4337653202. The cubic root of 1997324252 is about 1259.3589272656.

The spelling of 1997324252 in words is "one billion, nine hundred ninety-seven million, three hundred twenty-four thousand, two hundred fifty-two".