7045539840 has 384 divisors, whose sum is σ = 26535600000. Its totient is φ = 1767112704.

The previous prime is 7045539817. The next prime is 7045539847. The reversal of 7045539840 is 489355407.

7045539840 is a `hidden beast` number, since 7 + 0 + 4 + 553 + 98 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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

It is not an unprimeable number, because it can be changed into a prime (7045539847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4699411 + ... + 4700909.

It is an arithmetic number, because the mean of its divisors is an integer number (69103125).

Almost surely, 2^7045539840 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 7045539840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13267800000).

7045539840 is an abundant number, since it is smaller than the sum of its proper divisors (19490060160).

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

7045539840 is a wasteful number, since it uses less digits than its factorization.

7045539840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 7045539840 is about 83937.7140503600. The cubic root of 7045539840 is about 1917.0705325965.

The spelling of 7045539840 in words is "seven billion, forty-five million, five hundred thirty-nine thousand, eight hundred forty".