7245504420 has 384 divisors, whose sum is σ = 26824089600. Its totient is φ = 1417113600.

The previous prime is 7245504407. The next prime is 7245504433. The reversal of 7245504420 is 244055427.

It is an interprime number because it is at equal distance from previous prime (7245504407) and next prime (7245504433).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5492521 + ... + 5493839.

It is an arithmetic number, because the mean of its divisors is an integer number (69854400).

Almost surely, 2^7245504420 is an apocalyptic number.

7245504420 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 7245504420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13412044800).

7245504420 is an abundant number, since it is smaller than the sum of its proper divisors (19578585180).

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

7245504420 is a wasteful number, since it uses less digits than its factorization.

7245504420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 33.

The square root of 7245504420 is about 85120.5287812523. The cubic root of 7245504420 is about 1935.0381954015.

Adding to 7245504420 its reverse (244055427), we get a palindrome (7489559847).

The spelling of 7245504420 in words is "seven billion, two hundred forty-five million, five hundred four thousand, four hundred twenty".