742774 has 4 divisors (see below), whose sum is σ = 1114164. Its totient is φ = 371386.

The previous prime is 742759. The next prime is 742783. The reversal of 742774 is 477247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 477247 = 149 ⋅3203.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

742774 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 as a sum of consecutive naturals, namely, 185692 + ... + 185695.

It is an arithmetic number, because the mean of its divisors is an integer number (278541).

2⁷⁴²⁷⁷⁴ is an apocalyptic number.

742774 is a deficient number, since it is larger than the sum of its proper divisors (371390).

742774 is a wasteful number, since it uses less digits than its factorization.

742774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371389.

The product of its digits is 10976, while the sum is 31.

The square root of 742774 is about 861.8433732413. The cubic root of 742774 is about 90.5632983093.

The spelling of 742774 in words is "seven hundred forty-two thousand, seven hundred seventy-four", and thus it is an iban number.