2167240 has 16 divisors (see below), whose sum is σ = 4876380. Its totient is φ = 866880.

The previous prime is 2167237. The next prime is 2167259. The reversal of 2167240 is 427612.

It can be written as a sum of positive squares in 2 ways, for example, as 1790244 + 376996 = 1338^2 + 614^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27051 + ... + 27130.

2^2167240 is an apocalyptic number.

2167240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2167240 is an abundant number, since it is smaller than the sum of its proper divisors (2709140).

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

2167240 is a wasteful number, since it uses less digits than its factorization.

2167240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54192 (or 54188 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2167240 is about 1472.1548831560. The cubic root of 2167240 is about 129.4103472540.

It can be divided in two parts, 21672 and 40, that added together give a palindrome (21712).

The spelling of 2167240 in words is "two million, one hundred sixty-seven thousand, two hundred forty".