501235140 has 96 divisors (see below), whose sum is σ = 1698326784. Its totient is φ = 107827200.

The previous prime is 501235139. The next prime is 501235193. The reversal of 501235140 is 41532105.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 27961 + ... + 42240.

It is an arithmetic number, because the mean of its divisors is an integer number (17690904).

Almost surely, 2^501235140 is an apocalyptic number.

It is an amenable number.

501235140 is an abundant number, since it is smaller than the sum of its proper divisors (1197091644).

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

501235140 is a wasteful number, since it uses less digits than its factorization.

501235140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70237 (or 70235 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 501235140 is about 22388.2813096495. The cubic root of 501235140 is about 794.3535427459.

Adding to 501235140 its reverse (41532105), we get a palindrome (542767245).

It can be divided in two parts, 501 and 235140, that added together give a triangular number (235641 = T₆₈₆).

The spelling of 501235140 in words is "five hundred one million, two hundred thirty-five thousand, one hundred forty".