1072734 has 32 divisors (see below), whose sum is σ = 2449440. Its totient is φ = 310272.

The previous prime is 1072733. The next prime is 1072763. The reversal of 1072734 is 4372701.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922 + ... + 1730.

It is an arithmetic number, because the mean of its divisors is an integer number (76545).

2^1072734 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1072734, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1224720).

1072734 is an abundant number, since it is smaller than the sum of its proper divisors (1376706).

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

1072734 is a wasteful number, since it uses less digits than its factorization.

1072734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 1072734 is about 1035.7287289633. The cubic root of 1072734 is about 102.3679521090.

The spelling of 1072734 in words is "one million, seventy-two thousand, seven hundred thirty-four".