68378156 has 24 divisors (see below), whose sum is σ = 149189376. Its totient is φ = 26640720.

The previous prime is 68378153. The next prime is 68378171. The reversal of 68378156 is 65187386.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (68378153) 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, 110696 + ... + 111311.

It is an arithmetic number, because the mean of its divisors is an integer number (6216224).

Almost surely, 2^68378156 is an apocalyptic number.

It is an amenable number.

68378156 is an abundant number, since it is smaller than the sum of its proper divisors (80811220).

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

68378156 is a wasteful number, since it uses less digits than its factorization.

68378156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222029 (or 222027 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 68378156 is about 8269.1085372004. The cubic root of 68378156 is about 408.9207307674.

The spelling of 68378156 in words is "sixty-eight million, three hundred seventy-eight thousand, one hundred fifty-six".