7485450840 has 256 divisors, whose sum is σ = 28795852800. Its totient is φ = 1694172672.

The previous prime is 7485450827. The next prime is 7485450851. The reversal of 7485450840 is 480545847.

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

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, 773874 + ... + 783486.

It is an arithmetic number, because the mean of its divisors is an integer number (112483800).

Almost surely, 2^7485450840 is an apocalyptic number.

7485450840 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 7485450840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14397926400).

7485450840 is an abundant number, since it is smaller than the sum of its proper divisors (21310401960).

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

7485450840 is a wasteful number, since it uses less digits than its factorization.

7485450840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9743 (or 9733 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 7485450840 is about 86518.4999869970. The cubic root of 7485450840 is about 1956.1672671140.

The spelling of 7485450840 in words is "seven billion, four hundred eighty-five million, four hundred fifty thousand, eight hundred forty".