1685262964 has 48 divisors (see below), whose sum is σ = 3803748480. Its totient is φ = 633951360.

The previous prime is 1685262919. The next prime is 1685262991. The reversal of 1685262964 is 4692625861.

It is a super-2 number, since 2×1685262964² = 5680222515660130592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85407 + ... + 103270.

It is an arithmetic number, because the mean of its divisors is an integer number (79244760).

Almost surely, 2^1685262964 is an apocalyptic number.

1685262964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1685262964 is an abundant number, since it is smaller than the sum of its proper divisors (2118485516).

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

1685262964 is a wasteful number, since it uses less digits than its factorization.

1685262964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188728 (or 188726 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 49.

The square root of 1685262964 is about 41051.9544479919. The cubic root of 1685262964 is about 1190.0244714032.

The spelling of 1685262964 in words is "one billion, six hundred eighty-five million, two hundred sixty-two thousand, nine hundred sixty-four".