740742 has 8 divisors (see below), whose sum is σ = 1481496. Its totient is φ = 246912.

The previous prime is 740737. The next prime is 740749. The reversal of 740742 is 247047.

740742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

740742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (740749) by changing a digit.

740742 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 3 ways as a sum of consecutive naturals, for example, 61723 + ... + 61734.

It is an arithmetic number, because the mean of its divisors is an integer number (185187).

2⁷⁴⁰⁷⁴² is an apocalyptic number.

740742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

740742 is a wasteful number, since it uses less digits than its factorization.

740742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123462.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 740742 is about 860.6636973871. The cubic root of 740742 is about 90.4806384921.

Adding to 740742 its reverse (247047), we get a palindrome (987789).

The spelling of 740742 in words is "seven hundred forty thousand, seven hundred forty-two", and thus it is an iban number.