1689394310 has 16 divisors (see below), whose sum is σ = 3200958000. Its totient is φ = 640191456.

The previous prime is 1689394309. The next prime is 1689394327. The reversal of 1689394310 is 134939861.

It is a super-2 number, since 2×1689394310² = 5708106269320752200, 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4445585 + ... + 4445964.

It is an arithmetic number, because the mean of its divisors is an integer number (200059875).

Almost surely, 2^1689394310 is an apocalyptic number.

1689394310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1689394310 is a deficient number, since it is larger than the sum of its proper divisors (1511563690).

1689394310 is a wasteful number, since it uses less digits than its factorization.

1689394310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8891575.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1689394310 is about 41102.2421529532. The cubic root of 1689394310 is about 1190.9961082656.

The spelling of 1689394310 in words is "one billion, six hundred eighty-nine million, three hundred ninety-four thousand, three hundred ten".