423420441 has 16 divisors (see below), whose sum is σ = 581059776. Its totient is φ = 274107456.

The previous prime is 423420421. The next prime is 423420443. The reversal of 423420441 is 144024324.

It is a happy number.

It is not a de Polignac number, because 423420441 - 2¹¹ = 423418393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423420443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12831 + ... + 31803.

It is an arithmetic number, because the mean of its divisors is an integer number (36316236).

Almost surely, 2^423420441 is an apocalyptic number.

It is an amenable number.

423420441 is a deficient number, since it is larger than the sum of its proper divisors (157639335).

423420441 is a wasteful number, since it uses less digits than its factorization.

423420441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19192.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 423420441 is about 20577.1825330875. The cubic root of 423420441 is about 750.9147008651.

Adding to 423420441 its reverse (144024324), we get a palindrome (567444765).

The spelling of 423420441 in words is "four hundred twenty-three million, four hundred twenty thousand, four hundred forty-one".