78194260 has 24 divisors (see below), whose sum is σ = 164376576. Its totient is φ = 31245600.

The previous prime is 78194231. The next prime is 78194267. The reversal of 78194260 is 6249187.

It is a super-2 number, since 2×78194260² = 12228684593895200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78194267) 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, 32085 + ... + 34435.

It is an arithmetic number, because the mean of its divisors is an integer number (6849024).

Almost surely, 2^78194260 is an apocalyptic number.

It is an amenable number.

78194260 is an abundant number, since it is smaller than the sum of its proper divisors (86182316).

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

78194260 is a wasteful number, since it uses less digits than its factorization.

78194260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023 (or 4021 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 78194260 is about 8842.7518341295. The cubic root of 78194260 is about 427.6202778193.

The spelling of 78194260 in words is "seventy-eight million, one hundred ninety-four thousand, two hundred sixty".