1528843140 has 96 divisors (see below), whose sum is σ = 5188821120. Its totient is φ = 370627200.

The previous prime is 1528843123. The next prime is 1528843153. The reversal of 1528843140 is 413488251.

It is a super-2 number, since 2×1528843140² = 4674722693450119200, which contains 22 as substring.

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 = 1528843095 and 1528843104.

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, 122751 + ... + 134630.

It is an arithmetic number, because the mean of its divisors is an integer number (54050220).

Almost surely, 2^1528843140 is an apocalyptic number.

1528843140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1528843140 is an abundant number, since it is smaller than the sum of its proper divisors (3659977980).

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

1528843140 is a wasteful number, since it uses less digits than its factorization.

1528843140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257410 (or 257402 counting only the distinct ones).

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

The square root of 1528843140 is about 39100.4237828697. The cubic root of 1528843140 is about 1152.0048556653.

The spelling of 1528843140 in words is "one billion, five hundred twenty-eight million, eight hundred forty-three thousand, one hundred forty".