496398401 has 8 divisors (see below), whose sum is σ = 510102120. Its totient is φ = 482709888.

The previous prime is 496398323. The next prime is 496398403. The reversal of 496398401 is 104893694.

It is a Cunningham number, because it is equal to 22280²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 496398400 = 1^2 + 22280^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-496398401 is a prime.

It is a super-2 number, since 2×496398401² = 492822745030713602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (496398403) 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 in 7 ways as a sum of consecutive naturals, for example, 102605 + ... + 107333.

It is an arithmetic number, because the mean of its divisors is an integer number (63762765).

Almost surely, 2^496398401 is an apocalyptic number.

It is an amenable number.

496398401 is a deficient number, since it is larger than the sum of its proper divisors (13703719).

496398401 is a wasteful number, since it uses less digits than its factorization.

496398401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7603.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 496398401 is about 22280.0000224417. Note that the first 4 decimals coincide. The cubic root of 496398401 is about 791.7902044602.

The spelling of 496398401 in words is "four hundred ninety-six million, three hundred ninety-eight thousand, four hundred one".