1305897488 has 20 divisors (see below), whose sum is σ = 2891630400. Its totient is φ = 559670304.

The previous prime is 1305897451. The next prime is 1305897497. The reversal of 1305897488 is 8847985031.

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, 5829788 + ... + 5830011.

It is an arithmetic number, because the mean of its divisors is an integer number (144581520).

Almost surely, 2^1305897488 is an apocalyptic number.

It is an amenable number.

1305897488 is an abundant number, since it is smaller than the sum of its proper divisors (1585732912).

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

1305897488 is a wasteful number, since it uses less digits than its factorization.

1305897488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11659814 (or 11659808 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 53.

The square root of 1305897488 is about 36137.2036549592. The cubic root of 1305897488 is about 1093.0407722405.

The spelling of 1305897488 in words is "one billion, three hundred five million, eight hundred ninety-seven thousand, four hundred eighty-eight".