404420234 has 16 divisors (see below), whose sum is σ = 626689536. Its totient is φ = 195534000.

The previous prime is 404420227. The next prime is 404420243. The reversal of 404420234 is 432024404.

It is a super-2 number, since 2×404420234² = 327111451337229512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156884 + ... + 159440.

It is an arithmetic number, because the mean of its divisors is an integer number (39168096).

Almost surely, 2^404420234 is an apocalyptic number.

404420234 is a deficient number, since it is larger than the sum of its proper divisors (222269302).

404420234 is a wasteful number, since it uses less digits than its factorization.

404420234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 404420234 is about 20110.2022366758. The cubic root of 404420234 is about 739.5104102676.

Adding to 404420234 its reverse (432024404), we get a palindrome (836444638).

The spelling of 404420234 in words is "four hundred four million, four hundred twenty thousand, two hundred thirty-four".