1819456942 has 8 divisors (see below), whose sum is σ = 2730802536. Its totient is φ = 909189432.

The previous prime is 1819456939. The next prime is 1819456973. The reversal of 1819456942 is 2496549181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265288 + ... + 272059.

It is an arithmetic number, because the mean of its divisors is an integer number (341350317).

Almost surely, 2^1819456942 is an apocalyptic number.

1819456942 is a deficient number, since it is larger than the sum of its proper divisors (911345594).

1819456942 is a wasteful number, since it uses less digits than its factorization.

1819456942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539042.

The product of its digits is 622080, while the sum is 49.

The square root of 1819456942 is about 42655.0928026185. The cubic root of 1819456942 is about 1220.8077026224.

The spelling of 1819456942 in words is "one billion, eight hundred nineteen million, four hundred fifty-six thousand, nine hundred forty-two".