438423462425 has 144 divisors (see below), whose sum is σ = 646071148800. Its totient is φ = 293211757440.

The previous prime is 438423462419. The next prime is 438423462443. The reversal of 438423462425 is 524264324834.

It is a happy number.

It is not a de Polignac number, because 438423462425 - 2²⁴ = 438406685209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 438423462425.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 9328158752 + ... + 9328158798.

It is an arithmetic number, because the mean of its divisors is an integer number (4486605200).

Almost surely, 2^438423462425 is an apocalyptic number.

It is an amenable number.

438423462425 is a deficient number, since it is larger than the sum of its proper divisors (207647686375).

438423462425 is an equidigital number, since it uses as much as digits as its factorization.

438423462425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 127 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 47.

The spelling of 438423462425 in words is "four hundred thirty-eight billion, four hundred twenty-three million, four hundred sixty-two thousand, four hundred twenty-five".