501798000 has 160 divisors (see below), whose sum is σ = 1765101312. Its totient is φ = 121632000.

The previous prime is 501797977. The next prime is 501798001. The reversal of 501798000 is 897105.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501798001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62199 + ... + 69801.

Almost surely, 2^501798000 is an apocalyptic number.

501798000 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 501798000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882550656).

501798000 is an abundant number, since it is smaller than the sum of its proper divisors (1263303312).

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

501798000 is a wasteful number, since it uses less digits than its factorization.

501798000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7640 (or 7624 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 501798000 is about 22400.8481982268. The cubic root of 501798000 is about 794.6507702304.

The spelling of 501798000 in words is "five hundred one million, seven hundred ninety-eight thousand".