1345405234 has 16 divisors (see below), whose sum is σ = 2059776000. Its totient is φ = 658947744.

The previous prime is 1345405231. The next prime is 1345405247. The reversal of 1345405234 is 4325045431.

It is a junction number, because it is equal to n+sod(n) for n = 1345405196 and 1345405205.

It is not an unprimeable number, because it can be changed into a prime (1345405231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13459 + ... + 53590.

It is an arithmetic number, because the mean of its divisors is an integer number (128736000).

Almost surely, 2^1345405234 is an apocalyptic number.

1345405234 is a deficient number, since it is larger than the sum of its proper divisors (714370766).

1345405234 is a wasteful number, since it uses less digits than its factorization.

1345405234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67257.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1345405234 is about 36679.7660025252. The cubic root of 1345405234 is about 1103.9541530574.

The spelling of 1345405234 in words is "one billion, three hundred forty-five million, four hundred five thousand, two hundred thirty-four".