78803142 has 32 divisors (see below), whose sum is σ = 172329984. Its totient is φ = 23824800.

The previous prime is 78803141. The next prime is 78803171. The reversal of 78803142 is 24130887.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78803141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34603 + ... + 36809.

It is an arithmetic number, because the mean of its divisors is an integer number (5385312).

Almost surely, 2^78803142 is an apocalyptic number.

78803142 is an abundant number, since it is smaller than the sum of its proper divisors (93526842).

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

78803142 is a wasteful number, since it uses less digits than its factorization.

78803142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 78803142 is about 8877.1133821755. The cubic root of 78803142 is about 428.7273385445.

The spelling of 78803142 in words is "seventy-eight million, eight hundred three thousand, one hundred forty-two".