528494400 has 504 divisors, whose sum is σ = 2211019200. Its totient is φ = 119669760.

The previous prime is 528494399. The next prime is 528494401. The reversal of 528494400 is 4494825.

528494400 is a `hidden beast` number, since 528 + 4 + 94 + 40 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (528494399) and next prime (528494401).

It is a tau number, because it is divible by the number of its divisors (504).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528494401) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4939147 + ... + 4939253.

Almost surely, 2^528494400 is an apocalyptic number.

528494400 is a gapful number since it is divisible by the number (50) 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 528494400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105509600).

528494400 is an abundant number, since it is smaller than the sum of its proper divisors (1682524800).

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

528494400 is a wasteful number, since it uses less digits than its factorization.

528494400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 528494400 is about 22989.0060681187. The cubic root of 528494400 is about 808.5001967729.

The spelling of 528494400 in words is "five hundred twenty-eight million, four hundred ninety-four thousand, four hundred".