501228000 has 960 divisors, whose sum is σ = 2397403008. Its totient is φ = 99532800.

The previous prime is 501227989. The next prime is 501228019. The reversal of 501228000 is 822105.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 29483992 + ... + 29484008.

Almost surely, 2^501228000 is an apocalyptic number.

501228000 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 501228000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198701504).

501228000 is an abundant number, since it is smaller than the sum of its proper divisors (1896175008).

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

501228000 is a wasteful number, since it uses less digits than its factorization.

501228000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 501228000 is about 22388.1218506600. The cubic root of 501228000 is about 794.3497709226.

The spelling of 501228000 in words is "five hundred one million, two hundred twenty-eight thousand".