501003630 has 80 divisors (see below), whose sum is σ = 1352381184. Its totient is φ = 133081920.

The previous prime is 501003551. The next prime is 501003631. The reversal of 501003630 is 36300105.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501003631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 236275 + ... + 238385.

Almost surely, 2^501003630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 501003630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676190592).

501003630 is an abundant number, since it is smaller than the sum of its proper divisors (851377554).

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

501003630 is a wasteful number, since it uses less digits than its factorization.

501003630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423 (or 2414 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 501003630 is about 22383.1103736724. The cubic root of 501003630 is about 794.2312254976.

Adding to 501003630 its reverse (36300105), we get a palindrome (537303735).

The spelling of 501003630 in words is "five hundred one million, three thousand, six hundred thirty".