491420192 has 12 divisors (see below), whose sum is σ = 967483566. Its totient is φ = 245710080.

The previous prime is 491420177. The next prime is 491420197. The reversal of 491420192 is 291024194.

It can be written as a sum of positive squares in only one way, i.e., 489471376 + 1948816 = 22124^2 + 1396^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 15356881 = 491420192 / (4 + 9 + 1 + 4 + 2 + 0 + 1 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (491420197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7678409 + ... + 7678472.

Almost surely, 2^491420192 is an apocalyptic number.

It is an amenable number.

491420192 is a deficient number, since it is larger than the sum of its proper divisors (476063374).

491420192 is a wasteful number, since it uses less digits than its factorization.

491420192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15356891 (or 15356883 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 491420192 is about 22167.9992782389. Note that the first 3 decimals coincide. The cubic root of 491420192 is about 789.1344427012.

Adding to 491420192 its sum of digits (32), we get a square (491420224 = 22168²).

It can be divided in two parts, 49 and 1420192, that added together give a palindrome (1420241).

The spelling of 491420192 in words is "four hundred ninety-one million, four hundred twenty thousand, one hundred ninety-two".