490806001 has 12 divisors (see below), whose sum is σ = 571369140. Its totient is φ = 420372960.

The previous prime is 490805989. The next prime is 490806013. The reversal of 490806001 is 100608094.

It is an interprime number because it is at equal distance from previous prime (490805989) and next prime (490806013).

It can be written as a sum of positive squares in 2 ways, for example, as 153165376 + 337640625 = 12376^2 + 18375^2 .

It is not a de Polignac number, because 490806001 - 2⁹ = 490805489 is a prime.

It is a super-2 number, since 2×490806001² = 481781061235224002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490806091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80811 + ... + 86671.

It is an arithmetic number, because the mean of its divisors is an integer number (47614095).

Almost surely, 2^490806001 is an apocalyptic number.

It is an amenable number.

490806001 is a deficient number, since it is larger than the sum of its proper divisors (80563139).

490806001 is a wasteful number, since it uses less digits than its factorization.

490806001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7584 (or 7577 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 490806001 is about 22154.1418475192. The cubic root of 490806001 is about 788.8055447149.

The spelling of 490806001 in words is "four hundred ninety million, eight hundred six thousand, one".