11207840 has 48 divisors (see below), whose sum is σ = 30264192. Its totient is φ = 3842304.

The previous prime is 11207839. The next prime is 11207849. The reversal of 11207840 is 4870211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11207849) 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, 3884 + ... + 6123.

It is an arithmetic number, because the mean of its divisors is an integer number (630504).

Almost surely, 2^11207840 is an apocalyptic number.

11207840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11207840 is an abundant number, since it is smaller than the sum of its proper divisors (19056352).

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

11207840 is a wasteful number, since it uses less digits than its factorization.

11207840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10029 (or 10021 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 11207840 is about 3347.8112252635. The cubic root of 11207840 is about 223.7899817237.

The spelling of 11207840 in words is "eleven million, two hundred seven thousand, eight hundred forty".