78300022 has 8 divisors (see below), whose sum is σ = 117702936. Its totient is φ = 39065712.

The previous prime is 78299999. The next prime is 78300023. The reversal of 78300022 is 22000387.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78300022² = 12261786890400968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78299966 and 78300002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78300023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40983 + ... + 42850.

It is an arithmetic number, because the mean of its divisors is an integer number (14712867).

Almost surely, 2^78300022 is an apocalyptic number.

78300022 is a deficient number, since it is larger than the sum of its proper divisors (39402914).

78300022 is a wasteful number, since it uses less digits than its factorization.

78300022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84302.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 78300022 is about 8848.7299653679. The cubic root of 78300022 is about 427.8129842103.

The spelling of 78300022 in words is "seventy-eight million, three hundred thousand, twenty-two".