1528622028 has 36 divisors (see below), whose sum is σ = 3988665408. Its totient is φ = 493103520.

The previous prime is 1528622003. The next prime is 1528622047. The reversal of 1528622028 is 8202268251.

1528622028 is a `hidden beast` number, since 1 + 5 + 2 + 8 + 622 + 0 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 1528621983 and 1528622001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 683751 + ... + 685982.

Almost surely, 2^1528622028 is an apocalyptic number.

1528622028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1528622028 is an abundant number, since it is smaller than the sum of its proper divisors (2460043380).

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

1528622028 is a wasteful number, since it uses less digits than its factorization.

1528622028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369774 (or 1369769 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 1528622028 is about 39097.5961920934. The cubic root of 1528622028 is about 1151.9493159848.

The spelling of 1528622028 in words is "one billion, five hundred twenty-eight million, six hundred twenty-two thousand, twenty-eight".