1252836 has 36 divisors (see below), whose sum is σ = 3411772. Its totient is φ = 385344.

The previous prime is 1252819. The next prime is 1252843. The reversal of 1252836 is 6382521.

1252836 = T₁₉₃ + T₁₉₄ + ... + T₂₄₄.

It can be written as a sum of positive squares in 2 ways, for example, as 86436 + 1166400 = 294^2 + 1080^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 871 + ... + 1806.

2^1252836 is an apocalyptic number.

It is an amenable number.

1252836 is an abundant number, since it is smaller than the sum of its proper divisors (2158936).

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

1252836 is a wasteful number, since it uses less digits than its factorization.

1252836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700 (or 2695 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1252836 is about 1119.3015679432. The cubic root of 1252836 is about 107.8031393259.

The spelling of 1252836 in words is "one million, two hundred fifty-two thousand, eight hundred thirty-six".