501648429 has 8 divisors (see below), whose sum is σ = 669376192. Its totient is φ = 334176480.

The previous prime is 501648403. The next prime is 501648451. The reversal of 501648429 is 924846105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 501648429 - 2²¹ = 499551277 is a prime.

It is a super-2 number, since 2×501648429² = 503302292636336082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501640429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59329 + ... + 67254.

It is an arithmetic number, because the mean of its divisors is an integer number (83672024).

Almost surely, 2^501648429 is an apocalyptic number.

It is an amenable number.

501648429 is a deficient number, since it is larger than the sum of its proper divisors (167727763).

501648429 is a wasteful number, since it uses less digits than its factorization.

501648429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127907.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 501648429 is about 22397.5094374352. The cubic root of 501648429 is about 794.5718084958.

The spelling of 501648429 in words is "five hundred one million, six hundred forty-eight thousand, four hundred twenty-nine".