1549456228 has 24 divisors (see below), whose sum is σ = 2872914912. Its totient is φ = 728682624.

The previous prime is 1549456189. The next prime is 1549456231. The reversal of 1549456228 is 8226549451.

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, 112275 + ... + 125317.

It is an arithmetic number, because the mean of its divisors is an integer number (119704788).

Almost surely, 2^1549456228 is an apocalyptic number.

It is an amenable number.

1549456228 is a deficient number, since it is larger than the sum of its proper divisors (1323458684).

1549456228 is a wasteful number, since it uses less digits than its factorization.

1549456228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14811 (or 14809 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The square root of 1549456228 is about 39363.1328529628. The cubic root of 1549456228 is about 1157.1591771629.

The spelling of 1549456228 in words is "one billion, five hundred forty-nine million, four hundred fifty-six thousand, two hundred twenty-eight".