740730 has 16 divisors (see below), whose sum is σ = 1777824. Its totient is φ = 197520.

The previous prime is 740717. The next prime is 740737. The reversal of 740730 is 37047.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 740697 and 740706.

It is not an unprimeable number, because it can be changed into a prime (740737) by changing a digit.

740730 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, 12316 + ... + 12375.

It is an arithmetic number, because the mean of its divisors is an integer number (111114).

2⁷⁴⁰⁷³⁰ is an apocalyptic number.

740730 is an abundant number, since it is smaller than the sum of its proper divisors (1037094).

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

740730 is a wasteful number, since it uses less digits than its factorization.

740730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24701.

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 740730 is about 860.6567259947. The cubic root of 740730 is about 90.4801498949.

Adding to 740730 its reverse (37047), we get a palindrome (777777).

The spelling of 740730 in words is "seven hundred forty thousand, seven hundred thirty".