1236264 has 16 divisors (see below), whose sum is σ = 3090720. Its totient is φ = 412080.

The previous prime is 1236259. The next prime is 1236307. The reversal of 1236264 is 4626321.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 51511 = 1236264 / (1 + 2 + 3 + 6 + 2 + 6 + 4).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

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, 25732 + ... + 25779.

It is an arithmetic number, because the mean of its divisors is an integer number (193170).

2^1236264 is an apocalyptic number.

It is an amenable number.

1236264 is an abundant number, since it is smaller than the sum of its proper divisors (1854456).

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

1236264 is a wasteful number, since it uses less digits than its factorization.

1236264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51520 (or 51516 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 1236264 is about 1111.8740935915. The cubic root of 1236264 is about 107.3257027697.

The spelling of 1236264 in words is "one million, two hundred thirty-six thousand, two hundred sixty-four".