2445886620 has 72 divisors (see below), whose sum is σ = 7424464320. Its totient is φ = 651772800.

The previous prime is 2445886613. The next prime is 2445886621. The reversal of 2445886620 is 266885442.

2445886620 is a `hidden beast` number, since 2 + 4 + 4 + 588 + 6 + 62 + 0 = 666.

It is a super-2 number, since 2×2445886620² = 11964722715790048800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445886621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303645 + ... + 311595.

It is an arithmetic number, because the mean of its divisors is an integer number (103117560).

Almost surely, 2^2445886620 is an apocalyptic number.

2445886620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2445886620 is an abundant number, since it is smaller than the sum of its proper divisors (4978577700).

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

2445886620 is a wasteful number, since it uses less digits than its factorization.

2445886620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9675 (or 9670 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The square root of 2445886620 is about 49455.9058151805. The cubic root of 2445886620 is about 1347.3448719548.

The spelling of 2445886620 in words is "two billion, four hundred forty-five million, eight hundred eighty-six thousand, six hundred twenty".