1240736 has 48 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 510720.

The previous prime is 1240717. The next prime is 1240739. The reversal of 1240736 is 6370421.

It is not an unprimeable number, because it can be changed into a prime (1240739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6401 + ... + 6591.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

2^1240736 is an apocalyptic number.

1240736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451520).

1240736 is an abundant number, since it is smaller than the sum of its proper divisors (1662304).

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

1240736 is a wasteful number, since it uses less digits than its factorization.

1240736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1240736 is about 1113.8832972982. The cubic root of 1240736 is about 107.4549585960.

The spelling of 1240736 in words is "one million, two hundred forty thousand, seven hundred thirty-six".