1345442872 has 8 divisors (see below), whose sum is σ = 2522705400. Its totient is φ = 672721432.

The previous prime is 1345442863. The next prime is 1345442881. The reversal of 1345442872 is 2782445431.

It is an interprime number because it is at equal distance from previous prime (1345442863) and next prime (1345442881).

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84090172 + ... + 84090187.

It is an arithmetic number, because the mean of its divisors is an integer number (315338175).

Almost surely, 2^1345442872 is an apocalyptic number.

It is an amenable number.

1345442872 is a deficient number, since it is larger than the sum of its proper divisors (1177262528).

1345442872 is a wasteful number, since it uses less digits than its factorization.

1345442872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168180365 (or 168180361 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 1345442872 is about 36680.2790610977. The cubic root of 1345442872 is about 1103.9644474128.

The spelling of 1345442872 in words is "one billion, three hundred forty-five million, four hundred forty-two thousand, eight hundred seventy-two".