64826136 has 128 divisors (see below), whose sum is σ = 190080000. Its totient is φ = 20442240.

The previous prime is 64826123. The next prime is 64826147. The reversal of 64826136 is 63162846.

64826136 is a `hidden beast` number, since 648 + 2 + 6 + 1 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 64826136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494791 + ... + 494921.

It is an arithmetic number, because the mean of its divisors is an integer number (1485000).

Almost surely, 2^64826136 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 64826136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95040000).

64826136 is an abundant number, since it is smaller than the sum of its proper divisors (125253864).

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

64826136 is a wasteful number, since it uses less digits than its factorization.

64826136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 244 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 64826136 is about 8051.4679406926. The cubic root of 64826136 is about 401.7137637154.

The spelling of 64826136 in words is "sixty-four million, eight hundred twenty-six thousand, one hundred thirty-six".