11207440 has 40 divisors (see below), whose sum is σ = 27194688. Its totient is φ = 4287360.

The previous prime is 11207429. The next prime is 11207447. The reversal of 11207440 is 4470211.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×11207440² = 251213422707200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11207447) 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, 1206 + ... + 4885.

Almost surely, 2^11207440 is an apocalyptic number.

11207440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11207440 is an abundant number, since it is smaller than the sum of its proper divisors (15987248).

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

11207440 is a wasteful number, since it uses less digits than its factorization.

11207440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127 (or 6121 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 11207440 is about 3347.7514842055. The cubic root of 11207440 is about 223.7873193892.

Adding to 11207440 its reverse (4470211), we get a palindrome (15677651).

The spelling of 11207440 in words is "eleven million, two hundred seven thousand, four hundred forty".