742630 has 24 divisors (see below), whose sum is σ = 1542672. Its totient is φ = 252144.

The previous prime is 742619. The next prime is 742657. The reversal of 742630 is 36247.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

742630 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 11 ways as a sum of consecutive naturals, for example, 7159 + ... + 7261.

It is an arithmetic number, because the mean of its divisors is an integer number (64278).

2⁷⁴²⁶³⁰ is an apocalyptic number.

742630 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

742630 is an abundant number, since it is smaller than the sum of its proper divisors (800042).

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

742630 is a wasteful number, since it uses less digits than its factorization.

742630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 742630 is about 861.7598273301. The cubic root of 742630 is about 90.5574454937.

Adding to 742630 its reverse (36247), we get a palindrome (778877).

It can be divided in two parts, 74 and 2630, that added together give a square (2704 = 52²).

The spelling of 742630 in words is "seven hundred forty-two thousand, six hundred thirty".