826978422 has 32 divisors (see below), whose sum is σ = 1672529760. Its totient is φ = 272574720.

The previous prime is 826978421. The next prime is 826978463. The reversal of 826978422 is 224879628.

It is a super-2 number, since 2×826978422² = 1367786620907220168, which contains 22 as substring.

Its product of digits (774144) is a multiple of the sum of its prime divisors (2688).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826978421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 431338 + ... + 433250.

It is an arithmetic number, because the mean of its divisors is an integer number (52266555).

Almost surely, 2^826978422 is an apocalyptic number.

826978422 is an abundant number, since it is smaller than the sum of its proper divisors (845551338).

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

826978422 is a wasteful number, since it uses less digits than its factorization.

826978422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688.

The product of its digits is 774144, while the sum is 48.

The square root of 826978422 is about 28757.2325163601. The cubic root of 826978422 is about 938.6378421952.

It can be divided in two parts, 82697 and 8422, that added together give a palindrome (91119).

The spelling of 826978422 in words is "eight hundred twenty-six million, nine hundred seventy-eight thousand, four hundred twenty-two".