1911442492 has 12 divisors (see below), whose sum is σ = 3346142800. Its totient is φ = 955401696.

The previous prime is 1911442469. The next prime is 1911442513. The reversal of 1911442492 is 2942441191.

It is a super-2 number, since 2×1911442492² = 7307224800446340128, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 66168 + ... + 90559.

Almost surely, 2^1911442492 is an apocalyptic number.

It is an amenable number.

1911442492 is a deficient number, since it is larger than the sum of its proper divisors (1434700308).

1911442492 is a wasteful number, since it uses less digits than its factorization.

1911442492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159780 (or 159778 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 1911442492 is about 43720.0467977792. The cubic root of 1911442492 is about 1241.0437128277.

The spelling of 1911442492 in words is "one billion, nine hundred eleven million, four hundred forty-two thousand, four hundred ninety-two".