2280156 has 24 divisors (see below), whose sum is σ = 5362560. Its totient is φ = 754032.

The previous prime is 2280127. The next prime is 2280163. The reversal of 2280156 is 6510822.

2280156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2280156² = 10398222768672, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

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, 985 + ... + 2351.

It is an arithmetic number, because the mean of its divisors is an integer number (223440).

2^2280156 is an apocalyptic number.

It is an amenable number.

2280156 is an abundant number, since it is smaller than the sum of its proper divisors (3082404).

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

2280156 is a wasteful number, since it uses less digits than its factorization.

2280156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2280156 is about 1510.0185429325. The cubic root of 2280156 is about 131.6198890250.

Adding to 2280156 its sum of digits (24), we get a triangular number (2280180 = T₂₁₃₅).

Adding to 2280156 its reverse (6510822), we get a palindrome (8790978).

The spelling of 2280156 in words is "two million, two hundred eighty thousand, one hundred fifty-six".