78324190 has 32 divisors (see below), whose sum is σ = 165484224. Its totient is φ = 26127360.

The previous prime is 78324179. The next prime is 78324217. The reversal of 78324190 is 9142387.

It is a super-2 number, since 2×78324190² = 12269357478312200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12531 + ... + 17710.

It is an arithmetic number, because the mean of its divisors is an integer number (5171382).

Almost surely, 2^78324190 is an apocalyptic number.

78324190 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78324190 is an abundant number, since it is smaller than the sum of its proper divisors (87160034).

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

78324190 is a wasteful number, since it uses less digits than its factorization.

78324190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30292.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 78324190 is about 8850.0954797109. The cubic root of 78324190 is about 427.8569957799.

The spelling of 78324190 in words is "seventy-eight million, three hundred twenty-four thousand, one hundred ninety".