501726540 has 96 divisors (see below), whose sum is σ = 1690053120. Its totient is φ = 108642816.

The previous prime is 501726529. The next prime is 501726569. The reversal of 501726540 is 45627105.

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

It is a junction number, because it is equal to n+sod(n) for n = 501726498 and 501726507.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 23457 + ... + 39416.

It is an arithmetic number, because the mean of its divisors is an integer number (17604720).

Almost surely, 2^501726540 is an apocalyptic number.

It is an amenable number.

501726540 is an abundant number, since it is smaller than the sum of its proper divisors (1188326580).

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

501726540 is a wasteful number, since it uses less digits than its factorization.

501726540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62911 (or 62909 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 501726540 is about 22399.2531125482. The cubic root of 501726540 is about 794.6130469235.

The spelling of 501726540 in words is "five hundred one million, seven hundred twenty-six thousand, five hundred forty".