740430 has 48 divisors (see below), whose sum is σ = 2031120. Its totient is φ = 186624.

The previous prime is 740429. The next prime is 740461. The reversal of 740430 is 34047.

740430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1494 + ... + 1926.

It is an arithmetic number, because the mean of its divisors is an integer number (42315).

2⁷⁴⁰⁴³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 740430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015560).

740430 is an abundant number, since it is smaller than the sum of its proper divisors (1290690).

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

740430 is a wasteful number, since it uses less digits than its factorization.

740430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 740430 is about 860.4824228304. The cubic root of 740430 is about 90.4679332481.

Adding to 740430 its reverse (34047), we get a palindrome (774477).

The spelling of 740430 in words is "seven hundred forty thousand, four hundred thirty".