1345423404 has 48 divisors (see below), whose sum is σ = 3423633920. Its totient is φ = 408732480.

The previous prime is 1345423379. The next prime is 1345423411. The reversal of 1345423404 is 4043245431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42262 + ... + 66909.

Almost surely, 2^1345423404 is an apocalyptic number.

It is an amenable number.

1345423404 is an abundant number, since it is smaller than the sum of its proper divisors (2078210516).

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

1345423404 is a wasteful number, since it uses less digits than its factorization.

1345423404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109270 (or 109268 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 1345423404 is about 36680.0136859298. The cubic root of 1345423404 is about 1103.9591227513.

Adding to 1345423404 its reverse (4043245431), we get a palindrome (5388668835).

The spelling of 1345423404 in words is "one billion, three hundred forty-five million, four hundred twenty-three thousand, four hundred four".