7445706240 has 320 divisors, whose sum is σ = 28807156224. Its totient is φ = 1601568768.

The previous prime is 7445706217. The next prime is 7445706241. The reversal of 7445706240 is 426075447.

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7445706241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 909847 + ... + 917993.

Almost surely, 2^7445706240 is an apocalyptic number.

7445706240 is a gapful number since it is divisible by the number (70) 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 7445706240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14403578112).

7445706240 is an abundant number, since it is smaller than the sum of its proper divisors (21361449984).

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

7445706240 is a wasteful number, since it uses less digits than its factorization.

7445706240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8197 (or 8181 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 39.

The square root of 7445706240 is about 86288.5058394222. The cubic root of 7445706240 is about 1952.6989792749.

The spelling of 7445706240 in words is "seven billion, four hundred forty-five million, seven hundred six thousand, two hundred forty".