7487228 has 12 divisors (see below), whose sum is σ = 14974512. Its totient is φ = 3208800.

The previous prime is 7487189. The next prime is 7487243. The reversal of 7487228 is 8227847.

7487228 is an admirable number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 7487191 and 7487200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133673 + ... + 133728.

It is an arithmetic number, because the mean of its divisors is an integer number (1247876).

Almost surely, 2^7487228 is an apocalyptic number.

It is an amenable number.

7487228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7487228 is a wasteful number, since it uses less digits than its factorization.

7487228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267412 (or 267410 counting only the distinct ones).

The product of its digits is 50176, while the sum is 38.

The square root of 7487228 is about 2736.2799564372. The cubic root of 7487228 is about 195.6322062829.

The spelling of 7487228 in words is "seven million, four hundred eighty-seven thousand, two hundred twenty-eight".