1997734914 has 40 divisors (see below), whose sum is σ = 5115895488. Its totient is φ = 570781080.

The previous prime is 1997734909. The next prime is 1997734927. The reversal of 1997734914 is 4194377991.

It is a super-2 number, since 2×1997734914² = 7981889573229174792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 879702 + ... + 881969.

Almost surely, 2^1997734914 is an apocalyptic number.

1997734914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1997734914 is an abundant number, since it is smaller than the sum of its proper divisors (3118160574).

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

1997734914 is a wasteful number, since it uses less digits than its factorization.

1997734914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761692 (or 1761683 counting only the distinct ones).

The product of its digits is 1714608, while the sum is 54.

The square root of 1997734914 is about 44696.0279443263. The cubic root of 1997734914 is about 1259.4452319663.

The spelling of 1997734914 in words is "one billion, nine hundred ninety-seven million, seven hundred thirty-four thousand, nine hundred fourteen".