404229953 has 2 divisors, whose sum is σ = 404229954. Its totient is φ = 404229952.

The previous prime is 404229949. The next prime is 404229979. The reversal of 404229953 is 359922404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373571584 + 30658369 = 19328^2 + 5537^2 .

It is a cyclic number.

It is not a de Polignac number, because 404229953 - 2² = 404229949 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404229913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202114976 + 202114977.

It is an arithmetic number, because the mean of its divisors is an integer number (202114977).

Almost surely, 2^404229953 is an apocalyptic number.

It is an amenable number.

404229953 is a deficient number, since it is larger than the sum of its proper divisors (1).

404229953 is an equidigital number, since it uses as much as digits as its factorization.

404229953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 404229953 is about 20105.4707231639. The cubic root of 404229953 is about 739.3944114102.

The spelling of 404229953 in words is "four hundred four million, two hundred twenty-nine thousand, nine hundred fifty-three".