78432414 has 16 divisors (see below), whose sum is σ = 162274320. Its totient is φ = 25242560.

The previous prime is 78432413. The next prime is 78432433. The reversal of 78432414 is 41423487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78432413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225207 + ... + 225554.

It is an arithmetic number, because the mean of its divisors is an integer number (10142145).

Almost surely, 2^78432414 is an apocalyptic number.

78432414 is an abundant number, since it is smaller than the sum of its proper divisors (83841906).

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

78432414 is a wasteful number, since it uses less digits than its factorization.

78432414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450795.

The product of its digits is 21504, while the sum is 33.

The square root of 78432414 is about 8856.2076533921. The cubic root of 78432414 is about 428.0539680688.

The spelling of 78432414 in words is "seventy-eight million, four hundred thirty-two thousand, four hundred fourteen".