423440364 has 24 divisors (see below), whose sum is σ = 990053568. Its totient is φ = 140857360.

The previous prime is 423440341. The next prime is 423440383. The reversal of 423440364 is 463044324.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30042 + ... + 41825.

It is an arithmetic number, because the mean of its divisors is an integer number (41252232).

Almost surely, 2^423440364 is an apocalyptic number.

It is an amenable number.

423440364 is an abundant number, since it is smaller than the sum of its proper divisors (566613204).

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

423440364 is a wasteful number, since it uses less digits than its factorization.

423440364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72365 (or 72363 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 423440364 is about 20577.6666315693. Note that the first 4 decimals coincide. The cubic root of 423440364 is about 750.9264781575.

Adding to 423440364 its reverse (463044324), we get a palindrome (886484688).

The spelling of 423440364 in words is "four hundred twenty-three million, four hundred forty thousand, three hundred sixty-four".