1819214994 has 16 divisors (see below), whose sum is σ = 3715843968. Its totient is φ = 593502672.

The previous prime is 1819214981. The next prime is 1819215019. The reversal of 1819214994 is 4994129181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3225277 + ... + 3225840.

It is an arithmetic number, because the mean of its divisors is an integer number (232240248).

Almost surely, 2^1819214994 is an apocalyptic number.

1819214994 is an abundant number, since it is smaller than the sum of its proper divisors (1896628974).

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

1819214994 is a wasteful number, since it uses less digits than its factorization.

1819214994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6451169.

The product of its digits is 186624, while the sum is 48.

The square root of 1819214994 is about 42652.2566108758. The cubic root of 1819214994 is about 1220.7535866443.

The spelling of 1819214994 in words is "one billion, eight hundred nineteen million, two hundred fourteen thousand, nine hundred ninety-four".