1997682272 has 24 divisors (see below), whose sum is σ = 3941571816. Its totient is φ = 996648192.

The previous prime is 1997682241. The next prime is 1997682277. The reversal of 1997682272 is 2722867991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997682277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53678 + ... + 82925.

It is an arithmetic number, because the mean of its divisors is an integer number (164232159).

Almost surely, 2^1997682272 is an apocalyptic number.

It is an amenable number.

1997682272 is a deficient number, since it is larger than the sum of its proper divisors (1943889544).

1997682272 is a wasteful number, since it uses less digits than its factorization.

1997682272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137070 (or 137062 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The square root of 1997682272 is about 44695.4390514290. The cubic root of 1997682272 is about 1259.4341693878.

The spelling of 1997682272 in words is "one billion, nine hundred ninety-seven million, six hundred eighty-two thousand, two hundred seventy-two".