1998929734 has 16 divisors (see below), whose sum is σ = 3248605008. Its totient is φ = 918796032.

The previous prime is 1998929687. The next prime is 1998929743. The reversal of 1998929734 is 4379298991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682167 + ... + 685090.

It is an arithmetic number, because the mean of its divisors is an integer number (203037813).

Almost surely, 2^1998929734 is an apocalyptic number.

1998929734 is a deficient number, since it is larger than the sum of its proper divisors (1249675274).

1998929734 is a wasteful number, since it uses less digits than its factorization.

1998929734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367319.

The product of its digits is 8817984, while the sum is 61.

The square root of 1998929734 is about 44709.3920110753. The cubic root of 1998929734 is about 1259.6962680170.

The spelling of 1998929734 in words is "one billion, nine hundred ninety-eight million, nine hundred twenty-nine thousand, seven hundred thirty-four".