4023656 has 32 divisors (see below), whose sum is σ = 9287040. Its totient is φ = 1591488.

The previous prime is 4023653. The next prime is 4023659. The reversal of 4023656 is 6563204.

It is an interprime number because it is at equal distance from previous prime (4023653) and next prime (4023659).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (4023653) 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, 2036 + ... + 3491.

It is an arithmetic number, because the mean of its divisors is an integer number (290220).

Almost surely, 2^4023656 is an apocalyptic number.

It is an amenable number.

4023656 is an abundant number, since it is smaller than the sum of its proper divisors (5263384).

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

4023656 is a wasteful number, since it uses less digits than its factorization.

4023656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5553 (or 5549 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 4023656 is about 2005.9052819114. The cubic root of 4023656 is about 159.0524199877.

The spelling of 4023656 in words is "four million, twenty-three thousand, six hundred fifty-six".