1528643480 has 384 divisors, whose sum is σ = 4804531200. Its totient is φ = 424258560.

The previous prime is 1528643477. The next prime is 1528643489. The reversal of 1528643480 is 843468251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1528643489) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49311065 + ... + 49311095.

It is an arithmetic number, because the mean of its divisors is an integer number (12511800).

Almost surely, 2^1528643480 is an apocalyptic number.

1528643480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1528643480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2402265600).

1528643480 is an abundant number, since it is smaller than the sum of its proper divisors (3275887720).

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

1528643480 is a wasteful number, since it uses less digits than its factorization.

1528643480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 1528643480 is about 39097.8705302476. The cubic root of 1528643480 is about 1151.9547046073.

The spelling of 1528643480 in words is "one billion, five hundred twenty-eight million, six hundred forty-three thousand, four hundred eighty".