742864 has 20 divisors (see below), whose sum is σ = 1489860. Its totient is φ = 358400.

The previous prime is 742817. The next prime is 742891. The reversal of 742864 is 468247.

742864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 627264 + 115600 = 792^2 + 340^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337 + ... + 1264.

It is an arithmetic number, because the mean of its divisors is an integer number (74493).

2⁷⁴²⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

742864 is an abundant number, since it is smaller than the sum of its proper divisors (746996).

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

742864 is a wasteful number, since it uses less digits than its factorization.

742864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638 (or 1632 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 742864 is about 861.8955853234. The cubic root of 742864 is about 90.5669559350.

The spelling of 742864 in words is "seven hundred forty-two thousand, eight hundred sixty-four".