1528222472 has 16 divisors (see below), whose sum is σ = 3274762560. Its totient is φ = 654952464.

The previous prime is 1528222441. The next prime is 1528222481. The reversal of 1528222472 is 2742228251.

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, 13644788 + ... + 13644899.

It is an arithmetic number, because the mean of its divisors is an integer number (204672660).

Almost surely, 2^1528222472 is an apocalyptic number.

It is an amenable number.

1528222472 is an abundant number, since it is smaller than the sum of its proper divisors (1746540088).

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

1528222472 is a wasteful number, since it uses less digits than its factorization.

1528222472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27289700 (or 27289696 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 1528222472 is about 39092.4861322480. The cubic root of 1528222472 is about 1151.8489405355.

The spelling of 1528222472 in words is "one billion, five hundred twenty-eight million, two hundred twenty-two thousand, four hundred seventy-two".