491120542 has 16 divisors (see below), whose sum is σ = 804038400. Its totient is φ = 223129240.

The previous prime is 491120533. The next prime is 491120549. The reversal of 491120542 is 245021194.

It is a self number, because there is not a number n which added to its sum of digits gives 491120542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491120549) 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, 58059 + ... + 65977.

It is an arithmetic number, because the mean of its divisors is an integer number (50252400).

Almost surely, 2^491120542 is an apocalyptic number.

491120542 is a deficient number, since it is larger than the sum of its proper divisors (312917858).

491120542 is a wasteful number, since it uses less digits than its factorization.

491120542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 491120542 is about 22161.2396313925. The cubic root of 491120542 is about 788.9740150141.

The spelling of 491120542 in words is "four hundred ninety-one million, one hundred twenty thousand, five hundred forty-two".