78410422 has 4 divisors (see below), whose sum is σ = 117615636. Its totient is φ = 39205210.

The previous prime is 78410419. The next prime is 78410459. The reversal of 78410422 is 22401487.

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

It is a super-2 number, since 2×78410422² = 12296388556436168, which contains 22 as substring.

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, 19602604 + ... + 19602607.

It is an arithmetic number, because the mean of its divisors is an integer number (29403909).

Almost surely, 2^78410422 is an apocalyptic number.

78410422 is a deficient number, since it is larger than the sum of its proper divisors (39205214).

78410422 is a wasteful number, since it uses less digits than its factorization.

78410422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39205213.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 78410422 is about 8854.9659513744. The cubic root of 78410422 is about 428.0139563679.

The spelling of 78410422 in words is "seventy-eight million, four hundred ten thousand, four hundred twenty-two".