2402521440 has 192 divisors, whose sum is σ = 8296162560. Its totient is φ = 579594240.

The previous prime is 2402521439. The next prime is 2402521489. The reversal of 2402521440 is 441252042.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2402521440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1208127 + ... + 1210113.

It is an arithmetic number, because the mean of its divisors is an integer number (43209180).

Almost surely, 2^2402521440 is an apocalyptic number.

2402521440 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 2402521440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4148081280).

2402521440 is an abundant number, since it is smaller than the sum of its proper divisors (5893641120).

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

2402521440 is a wasteful number, since it uses less digits than its factorization.

2402521440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245 (or 2237 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 2402521440 is about 49015.5224393253. The cubic root of 2402521440 is about 1339.3346068998.

Adding to 2402521440 its reverse (441252042), we get a palindrome (2843773482).

The spelling of 2402521440 in words is "two billion, four hundred two million, five hundred twenty-one thousand, four hundred forty".