2445320 has 32 divisors (see below), whose sum is σ = 5560920. Its totient is φ = 967680.

The previous prime is 2445301. The next prime is 2445343. The reversal of 2445320 is 235442.

It can be written as a sum of positive squares in 4 ways, for example, as 1085764 + 1359556 = 1042^2 + 1166^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2445292 and 2445301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4250 + ... + 4790.

2^2445320 is an apocalyptic number.

2445320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2445320 is an abundant number, since it is smaller than the sum of its proper divisors (3115600).

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

2445320 is a wasteful number, since it uses less digits than its factorization.

2445320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2445320 is about 1563.7518984801. The cubic root of 2445320 is about 134.7240820864.

The spelling of 2445320 in words is "two million, four hundred forty-five thousand, three hundred twenty".