7252289280 has 216 divisors, whose sum is σ = 25294843392. Its totient is φ = 1918328832.

The previous prime is 7252289273. The next prime is 7252289287. The reversal of 7252289280 is 829822527.

It is an interprime number because it is at equal distance from previous prime (7252289273) and next prime (7252289287).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7252289287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1460562 + ... + 1465518.

Almost surely, 2^7252289280 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 7252289280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12647421696).

7252289280 is an abundant number, since it is smaller than the sum of its proper divisors (18042554112).

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

7252289280 is a wasteful number, since it uses less digits than its factorization.

7252289280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111 (or 5094 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 7252289280 is about 85160.3738836321. The cubic root of 7252289280 is about 1935.6420119904.

The spelling of 7252289280 in words is "seven billion, two hundred fifty-two million, two hundred eighty-nine thousand, two hundred eighty".