1992894290 has 32 divisors (see below), whose sum is σ = 3648948480. Its totient is φ = 783529344.

The previous prime is 1992894289. The next prime is 1992894307. The reversal of 1992894290 is 924982991.

It is a super-2 number, since 2×1992894290² = 7943255302229208200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173774 + ... + 184886.

It is an arithmetic number, because the mean of its divisors is an integer number (114029640).

Almost surely, 2^1992894290 is an apocalyptic number.

1992894290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1992894290 is a deficient number, since it is larger than the sum of its proper divisors (1656054190).

1992894290 is a wasteful number, since it uses less digits than its factorization.

1992894290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11426.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 1992894290 is about 44641.8446079460. The cubic root of 1992894290 is about 1258.4271737199.

The spelling of 1992894290 in words is "one billion, nine hundred ninety-two million, eight hundred ninety-four thousand, two hundred ninety".