11422140 has 24 divisors (see below), whose sum is σ = 31982160. Its totient is φ = 3045888.

The previous prime is 11422129. The next prime is 11422183. The reversal of 11422140 is 4122411.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95125 + ... + 95244.

It is an arithmetic number, because the mean of its divisors is an integer number (1332590).

Almost surely, 2^11422140 is an apocalyptic number.

11422140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11422140 is an abundant number, since it is smaller than the sum of its proper divisors (20560020).

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

11422140 is a wasteful number, since it uses less digits than its factorization.

11422140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190381 (or 190379 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 11422140 is about 3379.6656639378. The cubic root of 11422140 is about 225.2073150940.

Adding to 11422140 its reverse (4122411), we get a palindrome (15544551).

It can be divided in two parts, 1 and 1422140, that added together give a triangular number (1422141 = T₁₆₈₆).

The spelling of 11422140 in words is "eleven million, four hundred twenty-two thousand, one hundred forty".