2427156 has 18 divisors (see below), whose sum is σ = 6135402. Its totient is φ = 809040.

The previous prime is 2427151. The next prime is 2427157. The reversal of 2427156 is 6517242.

It can be written as a sum of positive squares in only one way, i.e., 2160900 + 266256 = 1470^2 + 516^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2427151) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 33675 + ... + 33746.

2^2427156 is an apocalyptic number.

It is an amenable number.

2427156 is an abundant number, since it is smaller than the sum of its proper divisors (3708246).

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

2427156 is a wasteful number, since it uses less digits than its factorization.

2427156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67431 (or 67426 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2427156 is about 1557.9332463235. The cubic root of 2427156 is about 134.3896728885.

The spelling of 2427156 in words is "two million, four hundred twenty-seven thousand, one hundred fifty-six".