2445357420 has 144 divisors (see below), whose sum is σ = 8146494720. Its totient is φ = 588816000.

The previous prime is 2445357413. The next prime is 2445357433. The reversal of 2445357420 is 247535442.

2445357420 is a `hidden beast` number, since 24 + 45 + 3 + 574 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 294891 + ... + 303069.

It is an arithmetic number, because the mean of its divisors is an integer number (56572880).

Almost surely, 2^2445357420 is an apocalyptic number.

2445357420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2445357420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4073247360).

2445357420 is an abundant number, since it is smaller than the sum of its proper divisors (5701137300).

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

2445357420 is a wasteful number, since it uses less digits than its factorization.

2445357420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8356 (or 8351 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 36.

The square root of 2445357420 is about 49450.5553052744. Note that the first 3 decimals coincide. The cubic root of 2445357420 is about 1347.2476929700.

The spelling of 2445357420 in words is "two billion, four hundred forty-five million, three hundred fifty-seven thousand, four hundred twenty".