1997962432 has 14 divisors (see below), whose sum is σ = 3964706828. Its totient is φ = 998981184.

The previous prime is 1997962411. The next prime is 1997962481. The reversal of 1997962432 is 2342697991.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1997962432.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15609018 + ... + 15609145.

Almost surely, 2^1997962432 is an apocalyptic number.

It is an amenable number.

1997962432 is a deficient number, since it is larger than the sum of its proper divisors (1966744396).

1997962432 is an equidigital number, since it uses as much as digits as its factorization.

1997962432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31218175 (or 31218165 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 52.

The square root of 1997962432 is about 44698.5730421006. The cubic root of 1997962432 is about 1259.4930420438.

The spelling of 1997962432 in words is "one billion, nine hundred ninety-seven million, nine hundred sixty-two thousand, four hundred thirty-two".