1897425312 has 24 divisors (see below), whose sum is σ = 4980741696. Its totient is φ = 632475072.

The previous prime is 1897425293. The next prime is 1897425331. The reversal of 1897425312 is 2135247981.

It is an interprime number because it is at equal distance from previous prime (1897425293) and next prime (1897425331).

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9882328 + ... + 9882519.

It is an arithmetic number, because the mean of its divisors is an integer number (207530904).

Almost surely, 2^1897425312 is an apocalyptic number.

1897425312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1897425312 is an abundant number, since it is smaller than the sum of its proper divisors (3083316384).

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

1897425312 is a wasteful number, since it uses less digits than its factorization.

1897425312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19764860 (or 19764852 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 1897425312 is about 43559.4457265012. The cubic root of 1897425312 is about 1238.0026185630.

The spelling of 1897425312 in words is "one billion, eight hundred ninety-seven million, four hundred twenty-five thousand, three hundred twelve".