78132422 has 16 divisors (see below), whose sum is σ = 119040000. Its totient is φ = 38455560.

The previous prime is 78132407. The next prime is 78132437. The reversal of 78132422 is 22423187.

It is an interprime number because it is at equal distance from previous prime (78132407) and next prime (78132437).

It is a super-2 number, since 2×78132422² = 12209350735172168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 78347 + ... + 79337.

It is an arithmetic number, because the mean of its divisors is an integer number (7440000).

Almost surely, 2^78132422 is an apocalyptic number.

78132422 is a deficient number, since it is larger than the sum of its proper divisors (40907578).

78132422 is a wasteful number, since it uses less digits than its factorization.

78132422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571.

The product of its digits is 5376, while the sum is 29.

The square root of 78132422 is about 8839.2546065831. The cubic root of 78132422 is about 427.5075237781.

The spelling of 78132422 in words is "seventy-eight million, one hundred thirty-two thousand, four hundred twenty-two".