826632138 has 16 divisors (see below), whose sum is σ = 1668716640. Its totient is φ = 272968656.

The previous prime is 826632137. The next prime is 826632151. The reversal of 826632138 is 831236628.

826632138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 826632096 and 826632105.

It is not an unprimeable number, because it can be changed into a prime (826632137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 643153 + ... + 644436.

It is an arithmetic number, because the mean of its divisors is an integer number (104294790).

Almost surely, 2^826632138 is an apocalyptic number.

826632138 is an abundant number, since it is smaller than the sum of its proper divisors (842084502).

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

826632138 is a wasteful number, since it uses less digits than its factorization.

826632138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287701.

The product of its digits is 82944, while the sum is 39.

The square root of 826632138 is about 28751.2110701445. The cubic root of 826632138 is about 938.5068107051.

It can be divided in two parts, 8266 and 32138, that added together give a palindrome (40404).

The spelling of 826632138 in words is "eight hundred twenty-six million, six hundred thirty-two thousand, one hundred thirty-eight".