1236402 has 24 divisors (see below), whose sum is σ = 2702700. Its totient is φ = 408480.

The previous prime is 1236397. The next prime is 1236419. The reversal of 1236402 is 2046321.

It is a happy number.

1236402 is a `hidden beast` number, since 1 + 23 + 640 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1121481 + 114921 = 1059^2 + 339^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2452 + ... + 2912.

2^1236402 is an apocalyptic number.

1236402 is an abundant number, since it is smaller than the sum of its proper divisors (1466298).

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

1236402 is a wasteful number, since it uses less digits than its factorization.

1236402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1236402 is about 1111.9361492460. The cubic root of 1236402 is about 107.3296960905.

The spelling of 1236402 in words is "one million, two hundred thirty-six thousand, four hundred two".