2420521540 has 96 divisors (see below), whose sum is σ = 5748019200. Its totient is φ = 851343360.

The previous prime is 2420521531. The next prime is 2420521553. The reversal of 2420521540 is 451250242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 301701 + ... + 309619.

It is an arithmetic number, because the mean of its divisors is an integer number (59875200).

Almost surely, 2^2420521540 is an apocalyptic number.

2420521540 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 2420521540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2874009600).

2420521540 is an abundant number, since it is smaller than the sum of its proper divisors (3327497660).

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

2420521540 is a wasteful number, since it uses less digits than its factorization.

2420521540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8005 (or 8003 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2420521540 is about 49198.7961234825. The cubic root of 2420521540 is about 1342.6711291526.

Adding to 2420521540 its reverse (451250242), we get a palindrome (2871771782).

The spelling of 2420521540 in words is "two billion, four hundred twenty million, five hundred twenty-one thousand, five hundred forty".