78182748 has 54 divisors (see below), whose sum is σ = 226267496. Its totient is φ = 22297824.

The previous prime is 78182743. The next prime is 78182759. The reversal of 78182748 is 84728187.

It is a super-2 number, since 2×78182748² = 12225084169663008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78182743) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 140086 + ... + 140642.

Almost surely, 2^78182748 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 78182748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113133748).

78182748 is an abundant number, since it is smaller than the sum of its proper divisors (148084748).

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

78182748 is a wasteful number, since it uses less digits than its factorization.

78182748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 569 counting only the distinct ones).

The product of its digits is 200704, while the sum is 45.

The square root of 78182748 is about 8842.1008815779. The cubic root of 78182748 is about 427.5992915976.

It can be divided in two parts, 781827 and 48, that added together give a triangular number (781875 = T₁₂₅₀).

The spelling of 78182748 in words is "seventy-eight million, one hundred eighty-two thousand, seven hundred forty-eight".