491575038 has 16 divisors (see below), whose sum is σ = 983696400. Its totient is φ = 163767296.

The previous prime is 491575031. The next prime is 491575057. The reversal of 491575038 is 830575194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491575031) 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 7 ways as a sum of consecutive naturals, for example, 10563 + ... + 33086.

It is an arithmetic number, because the mean of its divisors is an integer number (61481025).

Almost surely, 2^491575038 is an apocalyptic number.

491575038 is an abundant number, since it is smaller than the sum of its proper divisors (492121362).

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

491575038 is a wasteful number, since it uses less digits than its factorization.

491575038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45531.

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 491575038 is about 22171.4915601093. The cubic root of 491575038 is about 789.2173191491.

The spelling of 491575038 in words is "four hundred ninety-one million, five hundred seventy-five thousand, thirty-eight".