78108460 has 48 divisors (see below), whose sum is σ = 172057536. Its totient is φ = 29728512.

The previous prime is 78108413. The next prime is 78108463. The reversal of 78108460 is 6480187.

It is a happy number.

It is a super-2 number, since 2×78108460² = 12201863047143200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78108463) 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, 127114 + ... + 127726.

It is an arithmetic number, because the mean of its divisors is an integer number (3584532).

Almost surely, 2^78108460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78108460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86028768).

78108460 is an abundant number, since it is smaller than the sum of its proper divisors (93949076).

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

78108460 is a wasteful number, since it uses less digits than its factorization.

78108460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 78108460 is about 8837.8990716120. The cubic root of 78108460 is about 427.4638160043.

The spelling of 78108460 in words is "seventy-eight million, one hundred eight thousand, four hundred sixty".