743742 has 20 divisors (see below), whose sum is σ = 1666896. Its totient is φ = 247860.

The previous prime is 743731. The next prime is 743747. The reversal of 743742 is 247347.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743747) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2134 + ... + 2457.

2⁷⁴³⁷⁴² is an apocalyptic number.

743742 is an abundant number, since it is smaller than the sum of its proper divisors (923154).

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

743742 is a wasteful number, since it uses less digits than its factorization.

743742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4605 (or 4596 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 743742 is about 862.4047773523. The cubic root of 743742 is about 90.6026226161.

It can be divided in two parts, 743 and 742, that added together give a triangular number (1485 = T₅₄).

The spelling of 743742 in words is "seven hundred forty-three thousand, seven hundred forty-two", and thus it is an iban number.