742718 has 4 divisors (see below), whose sum is σ = 1114080. Its totient is φ = 371358.

The previous prime is 742717. The next prime is 742723. The reversal of 742718 is 817247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 817247 = 19 ⋅43013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185678 + ... + 185681.

It is an arithmetic number, because the mean of its divisors is an integer number (278520).

2⁷⁴²⁷¹⁸ is an apocalyptic number.

742718 is a deficient number, since it is larger than the sum of its proper divisors (371362).

742718 is a wasteful number, since it uses less digits than its factorization.

742718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371361.

The product of its digits is 3136, while the sum is 29.

The square root of 742718 is about 861.8108841271. The cubic root of 742718 is about 90.5610223043.

Subtracting 742718 from its reverse (817247), we obtain a square (74529 = 273²).

The spelling of 742718 in words is "seven hundred forty-two thousand, seven hundred eighteen".