78382241 has 8 divisors (see below), whose sum is σ = 90286080. Its totient is φ = 66655008.

The previous prime is 78382219. The next prime is 78382289. The reversal of 78382241 is 14228387.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78382241 - 2¹⁴ = 78365857 is a prime.

It is a super-2 number, since 2×78382241² = 12287551408364162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78382541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43196 + ... + 44973.

It is an arithmetic number, because the mean of its divisors is an integer number (11285760).

Almost surely, 2^78382241 is an apocalyptic number.

It is an amenable number.

78382241 is a deficient number, since it is larger than the sum of its proper divisors (11903839).

78382241 is a wasteful number, since it uses less digits than its factorization.

78382241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88303.

The product of its digits is 21504, while the sum is 35.

The square root of 78382241 is about 8853.3745543719. The cubic root of 78382241 is about 427.9626736162.

The spelling of 78382241 in words is "seventy-eight million, three hundred eighty-two thousand, two hundred forty-one".