78310022 has 16 divisors (see below), whose sum is σ = 135228960. Its totient is φ = 33315648.

The previous prime is 78310021. The next prime is 78310027. The reversal of 78310022 is 22001387.

It is a super-2 number, since 2×78310022² = 12264919091280968, 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 78310022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78310021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18497 + ... + 22332.

It is an arithmetic number, because the mean of its divisors is an integer number (8451810).

Almost surely, 2^78310022 is an apocalyptic number.

78310022 is a deficient number, since it is larger than the sum of its proper divisors (56918938).

78310022 is a wasteful number, since it uses less digits than its factorization.

78310022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40975.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 78310022 is about 8849.2950001681. The cubic root of 78310022 is about 427.8311959878.

The spelling of 78310022 in words is "seventy-eight million, three hundred ten thousand, twenty-two".