838742 has 8 divisors (see below), whose sum is σ = 1263600. Its totient is φ = 417544.

The previous prime is 838711. The next prime is 838751. The reversal of 838742 is 247838.

838742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 838699 and 838708.

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, 242 + ... + 1317.

It is an arithmetic number, because the mean of its divisors is an integer number (157950).

2⁸³⁸⁷⁴² is an apocalyptic number.

838742 is a deficient number, since it is larger than the sum of its proper divisors (424858).

838742 is a wasteful number, since it uses less digits than its factorization.

838742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830.

The product of its digits is 10752, while the sum is 32.

The square root of 838742 is about 915.8285865816. The cubic root of 838742 is about 94.3067540173.

The spelling of 838742 in words is "eight hundred thirty-eight thousand, seven hundred forty-two".