2422451640 has 128 divisors (see below), whose sum is σ = 8315458560. Its totient is φ = 553042944.

The previous prime is 2422451623. The next prime is 2422451641. The reversal of 2422451640 is 461542242.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2422451598 and 2422451607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2422451641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1214484 + ... + 1216476.

It is an arithmetic number, because the mean of its divisors is an integer number (64964520).

Almost surely, 2^2422451640 is an apocalyptic number.

2422451640 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 2422451640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4157729280).

2422451640 is an abundant number, since it is smaller than the sum of its proper divisors (5893006920).

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

2422451640 is a wasteful number, since it uses less digits than its factorization.

2422451640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3461 (or 3457 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 2422451640 is about 49218.4075321419. The cubic root of 2422451640 is about 1343.0279119092.

Adding to 2422451640 its reverse (461542242), we get a palindrome (2883993882).

The spelling of 2422451640 in words is "two billion, four hundred twenty-two million, four hundred fifty-one thousand, six hundred forty".