2405051440 has 80 divisors (see below), whose sum is σ = 6144919200. Its totient is φ = 868136960.

The previous prime is 2405051423. The next prime is 2405051459. The reversal of 2405051440 is 441505042.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110586 + ... + 130534.

It is an arithmetic number, because the mean of its divisors is an integer number (76811490).

Almost surely, 2^2405051440 is an apocalyptic number.

2405051440 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 2405051440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3072459600).

2405051440 is an abundant number, since it is smaller than the sum of its proper divisors (3739867760).

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

2405051440 is a wasteful number, since it uses less digits than its factorization.

2405051440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20110 (or 20104 counting only the distinct ones).

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

The square root of 2405051440 is about 49041.3237994245. The cubic root of 2405051440 is about 1339.8045753472.

Adding to 2405051440 its reverse (441505042), we get a palindrome (2846556482).

The spelling of 2405051440 in words is "two billion, four hundred five million, fifty-one thousand, four hundred forty".