1305140376 has 16 divisors (see below), whose sum is σ = 3262851000. Its totient is φ = 435046784.

The previous prime is 1305140351. The next prime is 1305140399. The reversal of 1305140376 is 6730415031.

1305140376 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 27190401 + ... + 27190448.

Almost surely, 2^1305140376 is an apocalyptic number.

It is an amenable number.

1305140376 is an abundant number, since it is smaller than the sum of its proper divisors (1957710624).

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

1305140376 is a wasteful number, since it uses less digits than its factorization.

1305140376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54380858 (or 54380854 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1305140376 is about 36126.7266161771. The cubic root of 1305140376 is about 1092.8294962731.

The spelling of 1305140376 in words is "one billion, three hundred five million, one hundred forty thousand, three hundred seventy-six".