738240 has 56 divisors (see below), whose sum is σ = 2346960. Its totient is φ = 196608.

The previous prime is 738223. The next prime is 738247. The reversal of 738240 is 42837.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 738240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (738247) by changing a digit.

738240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576 + ... + 1344.

It is an arithmetic number, because the mean of its divisors is an integer number (41910).

2⁷³⁸²⁴⁰ 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 738240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173480).

738240 is an abundant number, since it is smaller than the sum of its proper divisors (1608720).

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

738240 is a wasteful number, since it uses less digits than its factorization.

738240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 779 counting only the distinct ones).

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

The square root of 738240 is about 859.2089385010. The cubic root of 738240 is about 90.3786516013.

The spelling of 738240 in words is "seven hundred thirty-eight thousand, two hundred forty".