742479 has 8 divisors (see below), whose sum is σ = 1016880. Its totient is φ = 481536.

The previous prime is 742457. The next prime is 742499. The reversal of 742479 is 974247.

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

It is not a de Polignac number, because 742479 - 2⁷ = 742351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3234 + ... + 3455.

It is an arithmetic number, because the mean of its divisors is an integer number (127110).

2⁷⁴²⁴⁷⁹ is an apocalyptic number.

742479 is a deficient number, since it is larger than the sum of its proper divisors (274401).

742479 is a wasteful number, since it uses less digits than its factorization.

742479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729.

The product of its digits is 14112, while the sum is 33.

The square root of 742479 is about 861.6722114586. The cubic root of 742479 is about 90.5513073535.

It can be divided in two parts, 7424 and 79, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 742479 in words is "seven hundred forty-two thousand, four hundred seventy-nine".