4231556 has 24 divisors (see below), whose sum is σ = 8574720. Its totient is φ = 1789632.

The previous prime is 4231553. The next prime is 4231559. The reversal of 4231556 is 6551324.

It is an interprime number because it is at equal distance from previous prime (4231553) and next prime (4231559).

It is a super-2 number, since 2×4231556² = 35812132362272, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4231553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256 + ... + 3168.

It is an arithmetic number, because the mean of its divisors is an integer number (357280).

Almost surely, 2^4231556 is an apocalyptic number.

It is an amenable number.

4231556 is an abundant number, since it is smaller than the sum of its proper divisors (4343164).

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

4231556 is a wasteful number, since it uses less digits than its factorization.

4231556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003 (or 2001 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 4231556 is about 2057.0746218842. The cubic root of 4231556 is about 161.7459310649.

The spelling of 4231556 in words is "four million, two hundred thirty-one thousand, five hundred fifty-six".