424321404 has 24 divisors (see below), whose sum is σ = 1066243920. Its totient is φ = 130560384.

The previous prime is 424321399. The next prime is 424321409. The reversal of 424321404 is 404123424.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (424321399) and next prime (424321409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424321409) 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, 1359849 + ... + 1360160.

It is an arithmetic number, because the mean of its divisors is an integer number (44426830).

Almost surely, 2^424321404 is an apocalyptic number.

It is an amenable number.

424321404 is an abundant number, since it is smaller than the sum of its proper divisors (641922516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424321404 is a wasteful number, since it uses less digits than its factorization.

424321404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720029 (or 2720027 counting only the distinct ones).

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

The square root of 424321404 is about 20599.0631825819. The cubic root of 424321404 is about 751.4469276277.

Adding to 424321404 its reverse (404123424), we get a palindrome (828444828).

The spelling of 424321404 in words is "four hundred twenty-four million, three hundred twenty-one thousand, four hundred four".