1309734 has 12 divisors (see below), whose sum is σ = 2837796. Its totient is φ = 436572.

The previous prime is 1309723. The next prime is 1309739. The reversal of 1309734 is 4379031.

It is a junction number, because it is equal to n+sod(n) for n = 1309698 and 1309707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1309739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36364 + ... + 36399.

It is an arithmetic number, because the mean of its divisors is an integer number (236483).

2^1309734 is an apocalyptic number.

1309734 is an abundant number, since it is smaller than the sum of its proper divisors (1528062).

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

1309734 is a wasteful number, since it uses less digits than its factorization.

1309734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72771 (or 72768 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1309734 is about 1144.4361056870. The cubic root of 1309734 is about 109.4110117065.

It can be divided in two parts, 13097 and 34, that added together give a palindrome (13131).

The spelling of 1309734 in words is "one million, three hundred nine thousand, seven hundred thirty-four".