12778202 has 8 divisors (see below), whose sum is σ = 20000736. Its totient is φ = 6111292.

The previous prime is 12778201. The next prime is 12778229. The reversal of 12778202 is 20287721.

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

It is not an unprimeable number, because it can be changed into a prime (12778201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138848 + ... + 138939.

It is an arithmetic number, because the mean of its divisors is an integer number (2500092).

Almost surely, 2^12778202 is an apocalyptic number.

12778202 is a deficient number, since it is larger than the sum of its proper divisors (7222534).

12778202 is a wasteful number, since it uses less digits than its factorization.

12778202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277812.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 12778202 is about 3574.6611028180. The cubic root of 12778202 is about 233.7885566528.

The spelling of 12778202 in words is "twelve million, seven hundred seventy-eight thousand, two hundred two".