1992012354 has 12 divisors (see below), whose sum is σ = 4316026806. Its totient is φ = 664004112.

The previous prime is 1992012343. The next prime is 1992012391. The reversal of 1992012354 is 4532102991.

It can be written as a sum of positive squares in only one way, i.e., 1695380625 + 296631729 = 41175^2 + 17223^2 .

It is a super-2 number, since 2×1992012354² = 7936226436977242632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55333659 + ... + 55333694.

Almost surely, 2^1992012354 is an apocalyptic number.

1992012354 is an abundant number, since it is smaller than the sum of its proper divisors (2324014452).

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

1992012354 is a wasteful number, since it uses less digits than its factorization.

1992012354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110667361 (or 110667358 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1992012354 is about 44631.9656076225. The cubic root of 1992012354 is about 1258.2415114243.

The spelling of 1992012354 in words is "one billion, nine hundred ninety-two million, twelve thousand, three hundred fifty-four".