1340565234 has 16 divisors (see below), whose sum is σ = 2689867488. Its totient is φ = 445398912.

The previous prime is 1340565227. The next prime is 1340565251. The reversal of 1340565234 is 4325650431.

It is a junction number, because it is equal to n+sod(n) for n = 1340565195 and 1340565204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362047 + ... + 365730.

It is an arithmetic number, because the mean of its divisors is an integer number (168116718).

Almost surely, 2^1340565234 is an apocalyptic number.

1340565234 is an abundant number, since it is smaller than the sum of its proper divisors (1349302254).

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

1340565234 is a wasteful number, since it uses less digits than its factorization.

1340565234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728089.

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

The square root of 1340565234 is about 36613.7301295566. The cubic root of 1340565234 is about 1102.6287635047.

The spelling of 1340565234 in words is "one billion, three hundred forty million, five hundred sixty-five thousand, two hundred thirty-four".