491040474 has 8 divisors (see below), whose sum is σ = 982080960. Its totient is φ = 163680156.

The previous prime is 491040463. The next prime is 491040479. The reversal of 491040474 is 474040194.

It is a sphenic number, since it is the product of 3 distinct primes.

491040474 is an admirable number.

It is a super-2 number, since 2×491040474² = 482241494212289352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (491040479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40920034 + ... + 40920045.

It is an arithmetic number, because the mean of its divisors is an integer number (122760120).

Almost surely, 2^491040474 is an apocalyptic number.

491040474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

491040474 is a wasteful number, since it uses less digits than its factorization.

491040474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81840084.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 491040474 is about 22159.4330703653. The cubic root of 491040474 is about 788.9311368750.

The spelling of 491040474 in words is "four hundred ninety-one million, forty thousand, four hundred seventy-four".