742474 has 4 divisors (see below), whose sum is σ = 1113714. Its totient is φ = 371236.

The previous prime is 742457. The next prime is 742499. The reversal of 742474 is 474247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 731025 + 11449 = 855^2 + 107^2 .

It is an unprimeable number.

742474 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, 185617 + ... + 185620.

2⁷⁴²⁴⁷⁴ is an apocalyptic number.

742474 is a deficient number, since it is larger than the sum of its proper divisors (371240).

742474 is a wasteful number, since it uses less digits than its factorization.

742474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371239.

The product of its digits is 6272, while the sum is 28.

The square root of 742474 is about 861.6693101184. The cubic root of 742474 is about 90.5511040896.

The spelling of 742474 in words is "seven hundred forty-two thousand, four hundred seventy-four", and thus it is an iban number.