404210494 has 8 divisors (see below), whose sum is σ = 608385960. Its totient is φ = 201415176.

The previous prime is 404210491. The next prime is 404210537. The reversal of 404210494 is 494012404.

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

It is a super-2 number, since 2×404210494² = 326772246919448072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404210491) 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, 344304 + ... + 345475.

It is an arithmetic number, because the mean of its divisors is an integer number (76048245).

Almost surely, 2^404210494 is an apocalyptic number.

404210494 is a deficient number, since it is larger than the sum of its proper divisors (204175466).

404210494 is a wasteful number, since it uses less digits than its factorization.

404210494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690074.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 404210494 is about 20104.9867943254. The cubic root of 404210494 is about 739.3825467883.

Adding to 404210494 its reverse (494012404), we get a palindrome (898222898).

The spelling of 404210494 in words is "four hundred four million, two hundred ten thousand, four hundred ninety-four".