1997269498 has 48 divisors (see below), whose sum is σ = 3640740480. Its totient is φ = 818312544.

The previous prime is 1997269489. The next prime is 1997269511. The reversal of 1997269498 is 8949627991.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289315 + ... + 296137.

It is an arithmetic number, because the mean of its divisors is an integer number (75848760).

Almost surely, 2^1997269498 is an apocalyptic number.

1997269498 is a deficient number, since it is larger than the sum of its proper divisors (1643470982).

1997269498 is a wasteful number, since it uses less digits than its factorization.

1997269498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971 (or 6964 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 64.

The square root of 1997269498 is about 44690.8211828783. The cubic root of 1997269498 is about 1259.3474192746.

The spelling of 1997269498 in words is "one billion, nine hundred ninety-seven million, two hundred sixty-nine thousand, four hundred ninety-eight".