78434022 has 24 divisors (see below), whose sum is σ = 166642056. Its totient is φ = 24606208.

The previous prime is 78434003. The next prime is 78434029. The reversal of 78434022 is 22043487.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78434029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20883 + ... + 24350.

It is an arithmetic number, because the mean of its divisors is an integer number (6943419).

Almost surely, 2^78434022 is an apocalyptic number.

78434022 is an abundant number, since it is smaller than the sum of its proper divisors (88208034).

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

78434022 is a wasteful number, since it uses less digits than its factorization.

78434022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45272 (or 45255 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 78434022 is about 8856.2984367059. The cubic root of 78434022 is about 428.0568933307.

The spelling of 78434022 in words is "seventy-eight million, four hundred thirty-four thousand, twenty-two".