78422410 has 64 divisors (see below), whose sum is σ = 162570240. Its totient is φ = 26959680.

The previous prime is 78422389. The next prime is 78422417. The reversal of 78422410 is 1422487.

It is not an unprimeable number, because it can be changed into a prime (78422417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351559 + ... + 351781.

It is an arithmetic number, because the mean of its divisors is an integer number (2540160).

Almost surely, 2^78422410 is an apocalyptic number.

78422410 is an abundant number, since it is smaller than the sum of its proper divisors (84147830).

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

78422410 is a wasteful number, since it uses less digits than its factorization.

78422410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

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

The square root of 78422410 is about 8855.6428338094. The cubic root of 78422410 is about 428.0357679660.

Adding to 78422410 its reverse (1422487), we get a palindrome (79844897).

The spelling of 78422410 in words is "seventy-eight million, four hundred twenty-two thousand, four hundred ten".