2445144786 has 80 divisors (see below), whose sum is σ = 6339223200. Its totient is φ = 698575752.

The previous prime is 2445144769. The next prime is 2445144803. The reversal of 2445144786 is 6874415442.

It is an interprime number because it is at equal distance from previous prime (2445144769) and next prime (2445144803).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 120225 + ... + 139083.

It is an arithmetic number, because the mean of its divisors is an integer number (79240290).

Almost surely, 2^2445144786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2445144786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3169611600).

2445144786 is an abundant number, since it is smaller than the sum of its proper divisors (3894078414).

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

2445144786 is an equidigital number, since it uses as much as digits as its factorization.

2445144786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18898 (or 18871 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 2445144786 is about 49448.4052927898. The cubic root of 2445144786 is about 1347.2086422410.

The spelling of 2445144786 in words is "two billion, four hundred forty-five million, one hundred forty-four thousand, seven hundred eighty-six".