2164335394 has 8 divisors (see below), whose sum is σ = 3496234140. Its totient is φ = 998924016.

The previous prime is 2164335373. The next prime is 2164335413. The reversal of 2164335394 is 4935334612.

It can be written as a sum of positive squares in 2 ways, for example, as 2161041169 + 3294225 = 46487^2 + 1815^2 .

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

It is a super-2 number, since 2×2164335394² = 9368695395442270472, which contains 22 as substring.

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, 41621809 + ... + 41621860.

Almost surely, 2^2164335394 is an apocalyptic number.

2164335394 is a deficient number, since it is larger than the sum of its proper divisors (1331898746).

2164335394 is a wasteful number, since it uses less digits than its factorization.

2164335394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83243684.

The product of its digits is 233280, while the sum is 40.

The square root of 2164335394 is about 46522.4181873643. The cubic root of 2164335394 is about 1293.5250807892.

The spelling of 2164335394 in words is "two billion, one hundred sixty-four million, three hundred thirty-five thousand, three hundred ninety-four".