4528189440 has 416 divisors, whose sum is σ = 16984857600. Its totient is φ = 1141309440.

The previous prime is 4528189409. The next prime is 4528189451. The reversal of 4528189440 is 449818254.

4528189440 is a `hidden beast` number, since 4 + 5 + 28 + 189 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 10506025 + ... + 10506455.

Almost surely, 2^4528189440 is an apocalyptic number.

4528189440 is a gapful number since it is divisible by the number (40) 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 4528189440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8492428800).

4528189440 is an abundant number, since it is smaller than the sum of its proper divisors (12456668160).

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

4528189440 is a wasteful number, since it uses less digits than its factorization.

4528189440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 4528189440 is about 67291.8229802106. The cubic root of 4528189440 is about 1654.4038390317.

The spelling of 4528189440 in words is "four billion, five hundred twenty-eight million, one hundred eighty-nine thousand, four hundred forty".