1997372496 has 60 divisors (see below), whose sum is σ = 6002315232. Its totient is φ = 570677184.

The previous prime is 1997372431. The next prime is 1997372521. The reversal of 1997372496 is 6942737991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422260 + ... + 426963.

Almost surely, 2^1997372496 is an apocalyptic number.

1997372496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1997372496 is an abundant number, since it is smaller than the sum of its proper divisors (4004942736).

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

1997372496 is a wasteful number, since it uses less digits than its factorization.

1997372496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849248 (or 849235 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 57.

The square root of 1997372496 is about 44691.9735075550. The cubic root of 1997372496 is about 1259.3690668349.

The spelling of 1997372496 in words is "one billion, nine hundred ninety-seven million, three hundred seventy-two thousand, four hundred ninety-six".