404422460 has 24 divisors (see below), whose sum is σ = 914617536. Its totient is φ = 149325120.

The previous prime is 404422427. The next prime is 404422463. The reversal of 404422460 is 64224404.

It is a super-4 number, since 4×404422460⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404422463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777476 + ... + 777995.

It is an arithmetic number, because the mean of its divisors is an integer number (38109064).

Almost surely, 2^404422460 is an apocalyptic number.

It is an amenable number.

404422460 is an abundant number, since it is smaller than the sum of its proper divisors (510195076).

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

404422460 is a wasteful number, since it uses less digits than its factorization.

404422460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555493 (or 1555491 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 404422460 is about 20110.2575816423. The cubic root of 404422460 is about 739.5117670635.

Adding to 404422460 its reverse (64224404), we get a palindrome (468646864).

The spelling of 404422460 in words is "four hundred four million, four hundred twenty-two thousand, four hundred sixty".