5209281240 has 128 divisors (see below), whose sum is σ = 16072197120. Its totient is φ = 1349913600.

The previous prime is 5209281229. The next prime is 5209281263. The reversal of 5209281240 is 421829025.

It is a super-2 number, since 2×5209281240² = 54273222074831875200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1331367 + ... + 1335273.

It is an arithmetic number, because the mean of its divisors is an integer number (125564040).

Almost surely, 2^5209281240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5209281240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8036098560).

5209281240 is an abundant number, since it is smaller than the sum of its proper divisors (10862915880).

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

5209281240 is a wasteful number, since it uses less digits than its factorization.

5209281240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233 (or 4229 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 5209281240 is about 72175.3506399519. The cubic root of 5209281240 is about 1733.5083381816.

The spelling of 5209281240 in words is "five billion, two hundred nine million, two hundred eighty-one thousand, two hundred forty".