2445211720 has 48 divisors (see below), whose sum is σ = 6399972540. Its totient is φ = 838357632.

The previous prime is 2445211709. The next prime is 2445211739. The reversal of 2445211720 is 271125442.

2445211720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2296518084 + 148693636 = 47922^2 + 12194^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 621819 + ... + 625738.

Almost surely, 2^2445211720 is an apocalyptic number.

2445211720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2445211720 is an abundant number, since it is smaller than the sum of its proper divisors (3954760820).

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

2445211720 is a wasteful number, since it uses less digits than its factorization.

2445211720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247582 (or 1247571 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2445211720 is about 49449.0820946153. The cubic root of 2445211720 is about 1347.2209350701.

The spelling of 2445211720 in words is "two billion, four hundred forty-five million, two hundred eleven thousand, seven hundred twenty".