78958142 has 8 divisors (see below), whose sum is σ = 118503000. Its totient is φ = 39457144.

The previous prime is 78958141. The next prime is 78958151. The reversal of 78958142 is 24185987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 78958093 and 78958102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78958141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6017 + ... + 13932.

It is an arithmetic number, because the mean of its divisors is an integer number (14812875).

Almost surely, 2^78958142 is an apocalyptic number.

78958142 is a deficient number, since it is larger than the sum of its proper divisors (39544858).

78958142 is a wasteful number, since it uses less digits than its factorization.

78958142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21930.

The product of its digits is 161280, while the sum is 44.

The square root of 78958142 is about 8885.8394088572. The cubic root of 78958142 is about 429.0082461924.

The spelling of 78958142 in words is "seventy-eight million, nine hundred fifty-eight thousand, one hundred forty-two".