1625682684 has 12 divisors (see below), whose sum is σ = 3793259624. Its totient is φ = 541894224.

The previous prime is 1625682683. The next prime is 1625682697. The reversal of 1625682684 is 4862865261.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625682683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67736767 + ... + 67736790.

Almost surely, 2^1625682684 is an apocalyptic number.

It is an amenable number.

1625682684 is an abundant number, since it is smaller than the sum of its proper divisors (2167576940).

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

1625682684 is a wasteful number, since it uses less digits than its factorization.

1625682684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135473564 (or 135473562 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 1625682684 is about 40319.7555052111. The cubic root of 1625682684 is about 1175.8319586123.

The spelling of 1625682684 in words is "one billion, six hundred twenty-five million, six hundred eighty-two thousand, six hundred eighty-four".