1240734 has 24 divisors (see below), whose sum is σ = 2729160. Its totient is φ = 375760.

The previous prime is 1240717. The next prime is 1240739. The reversal of 1240734 is 4370421.

It is a self number, because there is not a number n which added to its sum of digits gives 1240734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129 + ... + 1580.

It is an arithmetic number, because the mean of its divisors is an integer number (113715).

2^1240734 is an apocalyptic number.

1240734 is an abundant number, since it is smaller than the sum of its proper divisors (1488426).

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

1240734 is a wasteful number, since it uses less digits than its factorization.

1240734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736 (or 1725 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 1240734 is about 1113.8823995378. The cubic root of 1240734 is about 107.4549008588.

The spelling of 1240734 in words is "one million, two hundred forty thousand, seven hundred thirty-four".