734820 has 48 divisors (see below), whose sum is σ = 2119488. Its totient is φ = 190080.

The previous prime is 734819. The next prime is 734837. The reversal of 734820 is 28437.

734820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2055 + ... + 2385.

It is an arithmetic number, because the mean of its divisors is an integer number (44156).

2⁷³⁴⁸²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 734820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1059744).

734820 is an abundant number, since it is smaller than the sum of its proper divisors (1384668).

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

734820 is a wasteful number, since it uses less digits than its factorization.

734820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 734820 is about 857.2164254143. The cubic root of 734820 is about 90.2388716158.

Adding to 734820 its product of nonzero digits (1344), we get a square (736164 = 858²).

The spelling of 734820 in words is "seven hundred thirty-four thousand, eight hundred twenty".