7421388480 has 280 divisors, whose sum is σ = 28800216720. Its totient is φ = 1799055360.

The previous prime is 7421388473. The next prime is 7421388493. The reversal of 7421388480 is 848831247.

7421388480 is a `hidden beast` number, since 74 + 21 + 3 + 88 + 480 = 666.

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 39 ways as a sum of consecutive naturals, for example, 272106 + ... + 298134.

Almost surely, 2^7421388480 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 7421388480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14400108360).

7421388480 is an abundant number, since it is smaller than the sum of its proper divisors (21378828240).

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

7421388480 is a wasteful number, since it uses less digits than its factorization.

7421388480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26069 (or 26050 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The square root of 7421388480 is about 86147.4809846463. The cubic root of 7421388480 is about 1950.5708151399.

The spelling of 7421388480 in words is "seven billion, four hundred twenty-one million, three hundred eighty-eight thousand, four hundred eighty".