1992635712 has 42 divisors (see below), whose sum is σ = 5711532138. Its totient is φ = 664211712.

The previous prime is 1992635683. The next prime is 1992635719. The reversal of 1992635712 is 2175362991.

It is a happy number.

1992635712 is a `hidden beast` number, since 1 + 9 + 9 + 2 + 635 + 7 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1682312256 + 310323456 = 41016^2 + 17616^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992635719) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1729143 + ... + 1730294.

Almost surely, 2^1992635712 is an apocalyptic number.

1992635712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1992635712 is an abundant number, since it is smaller than the sum of its proper divisors (3718896426).

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

1992635712 is a wasteful number, since it uses less digits than its factorization.

1992635712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3459455 (or 3459442 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 1992635712 is about 44638.9483747097. The cubic root of 1992635712 is about 1258.3727443976.

The spelling of 1992635712 in words is "one billion, nine hundred ninety-two million, six hundred thirty-five thousand, seven hundred twelve".