2521941240 has 256 divisors, whose sum is σ = 9377464320. Its totient is φ = 528353280.

The previous prime is 2521941217. The next prime is 2521941263. The reversal of 2521941240 is 421491252.

It is an interprime number because it is at equal distance from previous prime (2521941217) and next prime (2521941263).

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 = 2521941198 and 2521941207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1713705 + ... + 1715175.

It is an arithmetic number, because the mean of its divisors is an integer number (36630720).

Almost surely, 2^2521941240 is an apocalyptic number.

2521941240 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 2521941240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4688732160).

2521941240 is an abundant number, since it is smaller than the sum of its proper divisors (6855523080).

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

2521941240 is a wasteful number, since it uses less digits than its factorization.

2521941240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2521941240 is about 50218.9330830515. The cubic root of 2521941240 is about 1361.1677614344.

The spelling of 2521941240 in words is "two billion, five hundred twenty-one million, nine hundred forty-one thousand, two hundred forty".