1528473540 has 96 divisors (see below), whose sum is σ = 4721431680. Its totient is φ = 366361600.

The previous prime is 1528473521. The next prime is 1528473559. The reversal of 1528473540 is 453748251.

It is an interprime number because it is at equal distance from previous prime (1528473521) and next prime (1528473559).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45730 + ... + 71750.

It is an arithmetic number, because the mean of its divisors is an integer number (49181580).

Almost surely, 2^1528473540 is an apocalyptic number.

1528473540 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 1528473540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2360715840).

1528473540 is an abundant number, since it is smaller than the sum of its proper divisors (3192958140).

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

1528473540 is a wasteful number, since it uses less digits than its factorization.

1528473540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26133 (or 26131 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 1528473540 is about 39095.6972057028. The cubic root of 1528473540 is about 1151.9120152469.

The spelling of 1528473540 in words is "one billion, five hundred twenty-eight million, four hundred seventy-three thousand, five hundred forty".