1236340 has 24 divisors (see below), whose sum is σ = 2967552. Its totient is φ = 423840.

The previous prime is 1236337. The next prime is 1236383. The reversal of 1236340 is 436321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4276 + ... + 4555.

It is an arithmetic number, because the mean of its divisors is an integer number (123648).

2^1236340 is an apocalyptic number.

1236340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1236340 is an abundant number, since it is smaller than the sum of its proper divisors (1731212).

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

1236340 is a wasteful number, since it uses less digits than its factorization.

1236340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847 (or 8845 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1236340 is about 1111.9082695978. The cubic root of 1236340 is about 107.3279020266.

Subtracting from 1236340 its sum of digits (19), we obtain a palindrome (1236321).

It can be divided in two parts, 12363 and 40, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 1236340 in words is "one million, two hundred thirty-six thousand, three hundred forty".