740020 has 24 divisors (see below), whose sum is σ = 1570464. Its totient is φ = 292896.

The previous prime is 740011. The next prime is 740021. The reversal of 740020 is 20047.

740020 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 (740021) by changing a digit.

740020 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, 3147 + ... + 3373.

It is an arithmetic number, because the mean of its divisors is an integer number (65436).

2⁷⁴⁰⁰²⁰ is an apocalyptic number.

It is an amenable number.

740020 is an abundant number, since it is smaller than the sum of its proper divisors (830444).

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

740020 is a wasteful number, since it uses less digits than its factorization.

740020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 740020 is about 860.2441513896. The cubic root of 740020 is about 90.4512318264.

Adding to 740020 its reverse (20047), we get a palindrome (760067).

The spelling of 740020 in words is "seven hundred forty thousand, twenty", and thus it is an iban number.