747040 has 96 divisors (see below), whose sum is σ = 2177280. Its totient is φ = 236544.

The previous prime is 747037. The next prime is 747049. The reversal of 747040 is 40747.

It is a happy number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747049) 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, 25746 + ... + 25774.

It is an arithmetic number, because the mean of its divisors is an integer number (22680).

2⁷⁴⁷⁰⁴⁰ is an apocalyptic number.

747040 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 747040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088640).

747040 is an abundant number, since it is smaller than the sum of its proper divisors (1430240).

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

747040 is a wasteful number, since it uses less digits than its factorization.

747040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 747040 is about 864.3147574813. The cubic root of 747040 is about 90.7363458981.

Adding to 747040 its reverse (40747), we get a palindrome (787787).

The spelling of 747040 in words is "seven hundred forty-seven thousand, forty", and thus it is an iban number.