1625398068 has 48 divisors (see below), whose sum is σ = 4350568320. Its totient is φ = 462666624.

The previous prime is 1625398013. The next prime is 1625398079. The reversal of 1625398068 is 8608935261.

It is a happy number.

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, 13371 + ... + 58562.

It is an arithmetic number, because the mean of its divisors is an integer number (90636840).

Almost surely, 2^1625398068 is an apocalyptic number.

It is an amenable number.

1625398068 is an abundant number, since it is smaller than the sum of its proper divisors (2725170252).

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

1625398068 is a wasteful number, since it uses less digits than its factorization.

1625398068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72216 (or 72214 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 1625398068 is about 40316.2258650286. The cubic root of 1625398068 is about 1175.7633351095.

The spelling of 1625398068 in words is "one billion, six hundred twenty-five million, three hundred ninety-eight thousand, sixty-eight".