404042229 has 8 divisors (see below), whose sum is σ = 598581120. Its totient is φ = 269361468.

The previous prime is 404042209. The next prime is 404042231. The reversal of 404042229 is 922240404.

It is not a de Polignac number, because 404042229 - 2¹⁵ = 404009461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 14964527 = 404042229 / (4 + 0 + 4 + 0 + 4 + 2 + 2 + 2 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404042209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7482237 + ... + 7482290.

It is an arithmetic number, because the mean of its divisors is an integer number (74822640).

Almost surely, 2^404042229 is an apocalyptic number.

It is an amenable number.

404042229 is a deficient number, since it is larger than the sum of its proper divisors (194538891).

404042229 is a wasteful number, since it uses less digits than its factorization.

404042229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14964536 (or 14964530 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 404042229 is about 20100.8017004298. The cubic root of 404042229 is about 739.2799356706.

The spelling of 404042229 in words is "four hundred four million, forty-two thousand, two hundred twenty-nine".