836272840 has 192 divisors, whose sum is σ = 2276812800. Its totient is φ = 274599936.

The previous prime is 836272813. The next prime is 836272841. The reversal of 836272840 is 48272638.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 836272793 and 836272802.

It is not an unprimeable number, because it can be changed into a prime (836272841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2183289 + ... + 2183671.

It is an arithmetic number, because the mean of its divisors is an integer number (11858400).

Almost surely, 2^836272840 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 836272840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1138406400).

836272840 is an abundant number, since it is smaller than the sum of its proper divisors (1440539960).

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

836272840 is a wasteful number, since it uses less digits than its factorization.

836272840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 836272840 is about 28918.3823890618. The cubic root of 836272840 is about 942.1412031032.

The spelling of 836272840 in words is "eight hundred thirty-six million, two hundred seventy-two thousand, eight hundred forty".