11290040 has 32 divisors (see below), whose sum is σ = 26898480. Its totient is φ = 4250112.

The previous prime is 11290003. The next prime is 11290043. The reversal of 11290040 is 4009211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11290043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7622 + ... + 8981.

Almost surely, 2^11290040 is an apocalyptic number.

11290040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11290040 is an abundant number, since it is smaller than the sum of its proper divisors (15608440).

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

11290040 is a wasteful number, since it uses less digits than its factorization.

11290040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16631 (or 16627 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 11290040 is about 3360.0654755525. The cubic root of 11290040 is about 224.3357528672.

Adding to 11290040 its reverse (4009211), we get a palindrome (15299251).

The spelling of 11290040 in words is "eleven million, two hundred ninety thousand, forty".