2320656 has 40 divisors (see below), whose sum is σ = 6457920. Its totient is φ = 713856.

The previous prime is 2320651. The next prime is 2320657. The reversal of 2320656 is 6560232.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2320651) 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, 1236 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (161448).

2^2320656 is an apocalyptic number.

2320656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2320656 is an abundant number, since it is smaller than the sum of its proper divisors (4137264).

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

2320656 is a wasteful number, since it uses less digits than its factorization.

2320656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743 (or 3737 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2320656 is about 1523.3699485023. The cubic root of 2320656 is about 132.3945951798.

Adding to 2320656 its reverse (6560232), we get a palindrome (8880888).

The spelling of 2320656 in words is "two million, three hundred twenty thousand, six hundred fifty-six".