7245024228 has 72 divisors (see below), whose sum is σ = 20203657656. Its totient is φ = 2174860800.

The previous prime is 7245024221. The next prime is 7245024247. The reversal of 7245024228 is 8224205427.

It can be written as a sum of positive squares in 4 ways, for example, as 1522404324 + 5722619904 = 39018^2 + 75648^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7245024192 and 7245024201.

It is not an unprimeable number, because it can be changed into a prime (7245024221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169603 + ... + 207978.

Almost surely, 2^7245024228 is an apocalyptic number.

7245024228 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7245024228 is an abundant number, since it is smaller than the sum of its proper divisors (12958633428).

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

7245024228 is a wasteful number, since it uses less digits than its factorization.

7245024228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377645 (or 377640 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 7245024228 is about 85117.7080753470. The cubic root of 7245024228 is about 1934.9954465770.

The spelling of 7245024228 in words is "seven billion, two hundred forty-five million, twenty-four thousand, two hundred twenty-eight".