404024642 has 8 divisors (see below), whose sum is σ = 692613696. Its totient is φ = 173153412.

The previous prime is 404024641. The next prime is 404024651. The reversal of 404024642 is 246420404.

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

It is a super-2 number, since 2×404024642² = 326471822686456328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (404024641) 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, 14429438 + ... + 14429465.

It is an arithmetic number, because the mean of its divisors is an integer number (86576712).

Almost surely, 2^404024642 is an apocalyptic number.

404024642 is a deficient number, since it is larger than the sum of its proper divisors (288589054).

404024642 is a wasteful number, since it uses less digits than its factorization.

404024642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28858912.

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

The square root of 404024642 is about 20100.3642255557. The cubic root of 404024642 is about 739.2692091475.

It can be divided in two parts, 4040 and 24642, that added together give a palindrome (28682).

The spelling of 404024642 in words is "four hundred four million, twenty-four thousand, six hundred forty-two".