12840802 has 8 divisors (see below), whose sum is σ = 20742876. Its totient is φ = 5926512.

The previous prime is 12840799. The next prime is 12840811. The reversal of 12840802 is 20804821.

It can be written as a sum of positive squares in 2 ways, for example, as 12737761 + 103041 = 3569^2 + 321^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246913 + ... + 246964.

Almost surely, 2^12840802 is an apocalyptic number.

12840802 is a deficient number, since it is larger than the sum of its proper divisors (7902074).

12840802 is a wasteful number, since it uses less digits than its factorization.

12840802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493892.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 12840802 is about 3583.4064798736. The cubic root of 12840802 is about 234.1697091137.

Subtracting from 12840802 its product of nonzero digits (1024), we obtain a triangular number (12839778 = T₅₀₆₇).

The spelling of 12840802 in words is "twelve million, eight hundred forty thousand, eight hundred two".