404432051 has 2 divisors, whose sum is σ = 404432052. Its totient is φ = 404432050.

The previous prime is 404432027. The next prime is 404432059. The reversal of 404432051 is 150234404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404432051 - 2¹⁴ = 404415667 is a prime.

It is not a weakly prime, because it can be changed into another prime (404432059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202216025 + 202216026.

It is an arithmetic number, because the mean of its divisors is an integer number (202216026).

Almost surely, 2^404432051 is an apocalyptic number.

404432051 is a deficient number, since it is larger than the sum of its proper divisors (1).

404432051 is an equidigital number, since it uses as much as digits as its factorization.

404432051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 404432051 is about 20110.4960406252. The cubic root of 404432051 is about 739.5176129318.

Adding to 404432051 its reverse (150234404), we get a palindrome (554666455).

The spelling of 404432051 in words is "four hundred four million, four hundred thirty-two thousand, fifty-one".