2320020 has 36 divisors (see below), whose sum is σ = 7037940. Its totient is φ = 618624.

The previous prime is 2320001. The next prime is 2320039. The reversal of 2320020 is 200232.

It is an interprime number because it is at equal distance from previous prime (2320001) and next prime (2320039).

It can be written as a sum of positive squares in 2 ways, for example, as 1179396 + 1140624 = 1086^2 + 1068^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2319984 and 2320011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6265 + ... + 6624.

2^2320020 is an apocalyptic number.

2320020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320020 is an abundant number, since it is smaller than the sum of its proper divisors (4717920).

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

2320020 is a wasteful number, since it uses less digits than its factorization.

2320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12904 (or 12899 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 2320020 is about 1523.1611864803. The cubic root of 2320020 is about 132.3824993678.

Adding to 2320020 its reverse (200232), we get a palindrome (2520252).

It can be divided in two parts, 23200 and 20, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 2320020 in words is "two million, three hundred twenty thousand, twenty".