501634042 has 64 divisors (see below), whose sum is σ = 948326400. Its totient is φ = 193752000.

The previous prime is 501634039. The next prime is 501634043. The reversal of 501634042 is 240436105.

It is a junction number, because it is equal to n+sod(n) for n = 501633998 and 501634016.

It is not an unprimeable number, because it can be changed into a prime (501634043) 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 31 ways as a sum of consecutive naturals, for example, 1998417 + ... + 1998667.

It is an arithmetic number, because the mean of its divisors is an integer number (14817600).

Almost surely, 2^501634042 is an apocalyptic number.

501634042 is a deficient number, since it is larger than the sum of its proper divisors (446692358).

501634042 is a wasteful number, since it uses less digits than its factorization.

501634042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 501634042 is about 22397.1882610296. The cubic root of 501634042 is about 794.5642124629.

The spelling of 501634042 in words is "five hundred one million, six hundred thirty-four thousand, forty-two".