743540 has 48 divisors (see below), whose sum is σ = 1838592. Its totient is φ = 247296.

The previous prime is 743507. The next prime is 743549. The reversal of 743540 is 45347.

743540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743549) 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, 6524 + ... + 6636.

It is an arithmetic number, because the mean of its divisors is an integer number (38304).

2⁷⁴³⁵⁴⁰ is an apocalyptic number.

743540 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 743540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919296).

743540 is an abundant number, since it is smaller than the sum of its proper divisors (1095052).

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

743540 is a wasteful number, since it uses less digits than its factorization.

743540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 743540 is about 862.2876550201. The cubic root of 743540 is about 90.5944193292.

Adding to 743540 its reverse (45347), we get a palindrome (788887).

The spelling of 743540 in words is "seven hundred forty-three thousand, five hundred forty".