1606424994 has 32 divisors (see below), whose sum is σ = 3612853440. Its totient is φ = 529022016.

The previous prime is 1606424993. The next prime is 1606425061. The reversal of 1606424994 is 4994246061.

It is a super-2 number, since 2×1606424994² = 5161202522695800072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1606424993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174727 + ... + 183690.

It is an arithmetic number, because the mean of its divisors is an integer number (112901670).

Almost surely, 2^1606424994 is an apocalyptic number.

1606424994 is an abundant number, since it is smaller than the sum of its proper divisors (2006428446).

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

1606424994 is a wasteful number, since it uses less digits than its factorization.

1606424994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358511 (or 358505 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1606424994 is about 40080.2319604066. The cubic root of 1606424994 is about 1171.1705707425.

The spelling of 1606424994 in words is "one billion, six hundred six million, four hundred twenty-four thousand, nine hundred ninety-four".