7836426 has 60 divisors (see below), whose sum is σ = 19225206. Its totient is φ = 2371680.

The previous prime is 7836419. The next prime is 7836427. The reversal of 7836426 is 6246387.

7836426 is a `hidden beast` number, since 7 + 8 + 3 + 642 + 6 = 666.

7836426 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1071225 + 6765201 = 1035^2 + 2601^2 .

It is a super-2 number, since 2×7836426² = 122819144906952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7836427) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 128436 + ... + 128496.

Almost surely, 2^7836426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7836426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9612603).

7836426 is an abundant number, since it is smaller than the sum of its proper divisors (11388780).

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

7836426 is a wasteful number, since it uses less digits than its factorization.

7836426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 79 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 7836426 is about 2799.3617129624. The cubic root of 7836426 is about 198.6274859048.

The spelling of 7836426 in words is "seven million, eight hundred thirty-six thousand, four hundred twenty-six".