423215404 has 6 divisors (see below), whose sum is σ = 740626964. Its totient is φ = 211607700.

The previous prime is 423215399. The next prime is 423215411. The reversal of 423215404 is 404512324.

It is a happy number.

It is a super-2 number, since 2×423215404² = 358222556365766432, which contains 22 as substring.

It is an unprimeable number.

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, 52901922 + ... + 52901929.

Almost surely, 2^423215404 is an apocalyptic number.

It is an amenable number.

423215404 is a deficient number, since it is larger than the sum of its proper divisors (317411560).

423215404 is a wasteful number, since it uses less digits than its factorization.

423215404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105803855 (or 105803853 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 423215404 is about 20572.1997851469. The cubic root of 423215404 is about 750.7934737181.

Adding to 423215404 its reverse (404512324), we get a palindrome (827727728).

The spelling of 423215404 in words is "four hundred twenty-three million, two hundred fifteen thousand, four hundred four".