734440 has 64 divisors (see below), whose sum is σ = 1964160. Its totient is φ = 241920.

The previous prime is 734431. The next prime is 734443. The reversal of 734440 is 44437.

734440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×734440² = 1078804227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (734443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12010 + ... + 12070.

It is an arithmetic number, because the mean of its divisors is an integer number (30690).

2⁷³⁴⁴⁴⁰ is an apocalyptic number.

734440 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 734440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (982080).

734440 is an abundant number, since it is smaller than the sum of its proper divisors (1229720).

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

734440 is a wasteful number, since it uses less digits than its factorization.

734440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 734440 is about 856.9947491088. The cubic root of 734440 is about 90.2233137541.

Adding to 734440 its reverse (44437), we get a palindrome (778877).

The spelling of 734440 in words is "seven hundred thirty-four thousand, four hundred forty".