68221376 has 28 divisors (see below), whose sum is σ = 138684000. Its totient is φ = 33277440.

The previous prime is 68221301. The next prime is 68221397. The reversal of 68221376 is 67312286.

It is a happy number.

It is a super-2 number, since 2×68221376² = 9308312286666752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10376 + ... + 15623.

It is an arithmetic number, because the mean of its divisors is an integer number (4953000).

Almost surely, 2^68221376 is an apocalyptic number.

It is an amenable number.

68221376 is an abundant number, since it is smaller than the sum of its proper divisors (70462624).

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

68221376 is a wasteful number, since it uses less digits than its factorization.

68221376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26052 (or 26042 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 68221376 is about 8259.6232359594. The cubic root of 68221376 is about 408.6079620080.

The spelling of 68221376 in words is "sixty-eight million, two hundred twenty-one thousand, three hundred seventy-six".