7472521228 has 24 divisors (see below), whose sum is σ = 13306273344. Its totient is φ = 3670867200.

The previous prime is 7472521193. The next prime is 7472521249. The reversal of 7472521228 is 8221252747.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205476 + ... + 239092.

It is an arithmetic number, because the mean of its divisors is an integer number (554428056).

Almost surely, 2^7472521228 is an apocalyptic number.

It is an amenable number.

7472521228 is a deficient number, since it is larger than the sum of its proper divisors (5833752116).

7472521228 is a wasteful number, since it uses less digits than its factorization.

7472521228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34593 (or 34591 counting only the distinct ones).

The product of its digits is 125440, while the sum is 40.

The square root of 7472521228 is about 86443.7460317402. The cubic root of 7472521228 is about 1955.0403227315.

The spelling of 7472521228 in words is "seven billion, four hundred seventy-two million, five hundred twenty-one thousand, two hundred twenty-eight".