742782 has 16 divisors (see below), whose sum is σ = 1520640. Its totient is φ = 241752.

The previous prime is 742759. The next prime is 742783. The reversal of 742782 is 287247.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 742782.

It is not an unprimeable number, because it can be changed into a prime (742783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1182 + ... + 1697.

It is an arithmetic number, because the mean of its divisors is an integer number (95040).

2⁷⁴²⁷⁸² is an apocalyptic number.

742782 is an abundant number, since it is smaller than the sum of its proper divisors (777858).

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

742782 is a wasteful number, since it uses less digits than its factorization.

742782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927.

The product of its digits is 6272, while the sum is 30.

The square root of 742782 is about 861.8480144434. The cubic root of 742782 is about 90.5636234436.

Subtracting from 742782 its reverse (287247), we obtain a triangular number (455535 = T₉₅₄).

The spelling of 742782 in words is "seven hundred forty-two thousand, seven hundred eighty-two".