404242342 has 32 divisors (see below), whose sum is σ = 736791552. Its totient is φ = 162580704.

The previous prime is 404242313. The next prime is 404242351. The reversal of 404242342 is 243242404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5223 + ... + 28909.

It is an arithmetic number, because the mean of its divisors is an integer number (23024736).

Almost surely, 2^404242342 is an apocalyptic number.

404242342 is a deficient number, since it is larger than the sum of its proper divisors (332549210).

404242342 is a wasteful number, since it uses less digits than its factorization.

404242342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23772.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 404242342 is about 20105.7788210256. The cubic root of 404242342 is about 739.4019650842.

Adding to 404242342 its reverse (243242404), we get a palindrome (647484746).

The spelling of 404242342 in words is "four hundred four million, two hundred forty-two thousand, three hundred forty-two".