78467142 has 16 divisors (see below), whose sum is σ = 169006320. Its totient is φ = 24143712.

The previous prime is 78467119. The next prime is 78467149. The reversal of 78467142 is 24176487.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 78467142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78467149) 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 7 ways as a sum of consecutive naturals, for example, 502917 + ... + 503072.

It is an arithmetic number, because the mean of its divisors is an integer number (10562895).

Almost surely, 2^78467142 is an apocalyptic number.

78467142 is an abundant number, since it is smaller than the sum of its proper divisors (90539178).

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

78467142 is a wasteful number, since it uses less digits than its factorization.

78467142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006007.

The product of its digits is 75264, while the sum is 39.

The square root of 78467142 is about 8858.1680950409. The cubic root of 78467142 is about 428.1171361050.

The spelling of 78467142 in words is "seventy-eight million, four hundred sixty-seven thousand, one hundred forty-two".