68226940 has 24 divisors (see below), whose sum is σ = 144410112. Its totient is φ = 27074880.

The previous prime is 68226931. The next prime is 68226941. The reversal of 68226940 is 4962286.

It is a self number, because there is not a number n which added to its sum of digits gives 68226940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68226941) 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, 10891 + ... + 15970.

It is an arithmetic number, because the mean of its divisors is an integer number (6017088).

Almost surely, 2^68226940 is an apocalyptic number.

It is an amenable number.

68226940 is an abundant number, since it is smaller than the sum of its proper divisors (76183172).

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

68226940 is a wasteful number, since it uses less digits than its factorization.

68226940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26997 (or 26995 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 68226940 is about 8259.9600483295. The cubic root of 68226940 is about 408.6190701241.

The spelling of 68226940 in words is "sixty-eight million, two hundred twenty-six thousand, nine hundred forty".