1528072236 has 48 divisors (see below), whose sum is σ = 3970355200. Its totient is φ = 508240656.

The previous prime is 1528072201. The next prime is 1528072237. The reversal of 1528072236 is 6322708251.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1528072236.

It is not an unprimeable number, because it can be changed into a prime (1528072237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34725 + ... + 65283.

Almost surely, 2^1528072236 is an apocalyptic number.

It is an amenable number.

1528072236 is an abundant number, since it is smaller than the sum of its proper divisors (2442282964).

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

1528072236 is a wasteful number, since it uses less digits than its factorization.

1528072236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31035 (or 31027 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1528072236 is about 39090.5645392849. The cubic root of 1528072236 is about 1151.8111941009.

The spelling of 1528072236 in words is "one billion, five hundred twenty-eight million, seventy-two thousand, two hundred thirty-six".