78346022 has 4 divisors (see below), whose sum is σ = 117519036. Its totient is φ = 39173010.

The previous prime is 78346019. The next prime is 78346067. The reversal of 78346022 is 22064387.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×78346022² = 12276198326448968, 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 78346022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19586504 + ... + 19586507.

It is an arithmetic number, because the mean of its divisors is an integer number (29379759).

Almost surely, 2^78346022 is an apocalyptic number.

78346022 is a deficient number, since it is larger than the sum of its proper divisors (39173014).

78346022 is a wasteful number, since it uses less digits than its factorization.

78346022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39173013.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 78346022 is about 8851.3288267921. The cubic root of 78346022 is about 427.8967455523.

The spelling of 78346022 in words is "seventy-eight million, three hundred forty-six thousand, twenty-two".