842736 has 40 divisors (see below), whose sum is σ = 2211664. Its totient is φ = 276480.

The previous prime is 842729. The next prime is 842747. The reversal of 842736 is 637248.

It is a d-powerful number, because it can be written as 8³ + 4⁷ + 7⁷ + 2¹¹ + 3⁵ + 6 .

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4566 + ... + 4746.

2⁸⁴²⁷³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105832).

842736 is an abundant number, since it is smaller than the sum of its proper divisors (1368928).

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

842736 is a wasteful number, since it uses less digits than its factorization.

842736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 283 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 842736 is about 918.0065359244. The cubic root of 842736 is about 94.4562099401.

The spelling of 842736 in words is "eight hundred forty-two thousand, seven hundred thirty-six".