11172040 has 32 divisors (see below), whose sum is σ = 27423360. Its totient is φ = 4062400.

The previous prime is 11172023. The next prime is 11172061. The reversal of 11172040 is 4027111.

It is an unprimeable number.

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, 12256 + ... + 13135.

It is an arithmetic number, because the mean of its divisors is an integer number (856980).

Almost surely, 2^11172040 is an apocalyptic number.

11172040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11172040 is an abundant number, since it is smaller than the sum of its proper divisors (16251320).

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

11172040 is a wasteful number, since it uses less digits than its factorization.

11172040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25413 (or 25409 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 11172040 is about 3342.4601717896. The cubic root of 11172040 is about 223.5514514687.

Adding to 11172040 its reverse (4027111), we get a palindrome (15199151).

Subtracting from 11172040 its reverse (4027111), we obtain a square (7144929 = 2673²).

The spelling of 11172040 in words is "eleven million, one hundred seventy-two thousand, forty".