1345405236 has 48 divisors (see below), whose sum is σ = 3711469440. Its totient is φ = 371145600.

The previous prime is 1345405231. The next prime is 1345405247. The reversal of 1345405236 is 6325045431.

It is a junction number, because it is equal to n+sod(n) for n = 1345405197 and 1345405206.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 273715 + ... + 278586.

It is an arithmetic number, because the mean of its divisors is an integer number (77322280).

Almost surely, 2^1345405236 is an apocalyptic number.

It is an amenable number.

1345405236 is an abundant number, since it is smaller than the sum of its proper divisors (2366064204).

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

1345405236 is a wasteful number, since it uses less digits than its factorization.

1345405236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552344 (or 552342 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 1345405236 is about 36679.7660297881. The cubic root of 1345405236 is about 1103.9541536044.

The spelling of 1345405236 in words is "one billion, three hundred forty-five million, four hundred five thousand, two hundred thirty-six".