997233242 has 16 divisors (see below), whose sum is σ = 1541213352. Its totient is φ = 483636480.

The previous prime is 997233227. The next prime is 997233247. The reversal of 997233242 is 242332799.

997233242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 31579²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 907154161 + 90079081 = 30119^2 + 9491^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 997233242.

It is not an unprimeable number, because it can be changed into a prime (997233247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20963 + ... + 49334.

Almost surely, 2^997233242 is an apocalyptic number.

997233242 is a deficient number, since it is larger than the sum of its proper divisors (543980110).

997233242 is a wasteful number, since it uses less digits than its factorization.

997233242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70513.

The product of its digits is 163296, while the sum is 41.

The square root of 997233242 is about 31579.0000158333. Note that the first 4 decimals coincide. The cubic root of 997233242 is about 999.0768954736.

The spelling of 997233242 in words is "nine hundred ninety-seven million, two hundred thirty-three thousand, two hundred forty-two".