1298636 has 12 divisors (see below), whose sum is σ = 2296728. Its totient is φ = 642432.

The previous prime is 1298617. The next prime is 1298641. The reversal of 1298636 is 6368921.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1298596 and 1298605.

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, 1286 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (191394).

2^1298636 is an apocalyptic number.

It is an amenable number.

1298636 is a deficient number, since it is larger than the sum of its proper divisors (998092).

1298636 is a wasteful number, since it uses less digits than its factorization.

1298636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448 (or 3446 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 1298636 is about 1139.5771145473. The cubic root of 1298636 is about 109.1011041819.

It can be divided in two parts, 1298 and 636, that multiplied together give a palindrome (825528).

The spelling of 1298636 in words is "one million, two hundred ninety-eight thousand, six hundred thirty-six".