11254640 has 20 divisors (see below), whose sum is σ = 26167224. Its totient is φ = 4501824.

The previous prime is 11254637. The next prime is 11254651. The reversal of 11254640 is 4645211.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70262 + ... + 70421.

Almost surely, 2^11254640 is an apocalyptic number.

11254640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11254640 is an abundant number, since it is smaller than the sum of its proper divisors (14912584).

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

11254640 is a wasteful number, since it uses less digits than its factorization.

11254640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140696 (or 140690 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 11254640 is about 3354.7935853045. The cubic root of 11254640 is about 224.1010386018.

Adding to 11254640 its reverse (4645211), we get a palindrome (15899851).

The spelling of 11254640 in words is "eleven million, two hundred fifty-four thousand, six hundred forty".