78268622 has 16 divisors (see below), whose sum is σ = 121815360. Its totient is φ = 37671648.

The previous prime is 78268613. The next prime is 78268627. The reversal of 78268622 is 22686287.

It is a super-2 number, since 2×78268622² = 12251954379557768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78268622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78268627) 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, 19448 + ... + 23124.

It is an arithmetic number, because the mean of its divisors is an integer number (7613460).

Almost surely, 2^78268622 is an apocalyptic number.

78268622 is a deficient number, since it is larger than the sum of its proper divisors (43546738).

78268622 is a wasteful number, since it uses less digits than its factorization.

78268622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075.

The product of its digits is 129024, while the sum is 41.

The square root of 78268622 is about 8846.9555215339. The cubic root of 78268622 is about 427.7557891486.

The spelling of 78268622 in words is "seventy-eight million, two hundred sixty-eight thousand, six hundred twenty-two".