491541074 has 4 divisors (see below), whose sum is σ = 737311614. Its totient is φ = 245770536.

The previous prime is 491541031. The next prime is 491541079. The reversal of 491541074 is 470145194.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 439195849 + 52345225 = 20957^2 + 7235^2 .

It is a super-2 number, since 2×491541074² = 483225254858146952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (491541079) 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, 122885267 + ... + 122885270.

Almost surely, 2^491541074 is an apocalyptic number.

491541074 is a deficient number, since it is larger than the sum of its proper divisors (245770540).

491541074 is a wasteful number, since it uses less digits than its factorization.

491541074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245770539.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 491541074 is about 22170.7256083332. The cubic root of 491541074 is about 789.1991424773.

The spelling of 491541074 in words is "four hundred ninety-one million, five hundred forty-one thousand, seventy-four".