68422536 has 192 divisors, whose sum is σ = 237955200. Its totient is φ = 17739648.

The previous prime is 68422531. The next prime is 68422561. The reversal of 68422536 is 63522486.

It is a super-3 number, since 3×68422536³ (a number of 24 digits) contains 333 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68422536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68422531) 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, 1159675 + ... + 1159733.

It is an arithmetic number, because the mean of its divisors is an integer number (1239350).

Almost surely, 2^68422536 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 68422536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118977600).

68422536 is an abundant number, since it is smaller than the sum of its proper divisors (169532664).

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

68422536 is a wasteful number, since it uses less digits than its factorization.

68422536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 84 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 68422536 is about 8271.7915834479. The cubic root of 68422536 is about 409.0091799559.

It can be divided in two parts, 684 and 22536, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 68422536 in words is "sixty-eight million, four hundred twenty-two thousand, five hundred thirty-six".