742860 has 36 divisors (see below), whose sum is σ = 2253888. Its totient is φ = 198048.

The previous prime is 742817. The next prime is 742891. The reversal of 742860 is 68247.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

742860 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, 1884 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (62608).

2⁷⁴²⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

742860 is an abundant number, since it is smaller than the sum of its proper divisors (1511028).

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

742860 is a wasteful number, since it uses less digits than its factorization.

742860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 742860 is about 861.8932648536. The cubic root of 742860 is about 90.5667933801.

The spelling of 742860 in words is "seven hundred forty-two thousand, eight hundred sixty".