438367420 has 24 divisors (see below), whose sum is σ = 925722000. Its totient is φ = 174365952.

The previous prime is 438367417. The next prime is 438367421. The reversal of 438367420 is 24763834.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 438367420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438367421) 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, 57645 + ... + 64804.

It is an arithmetic number, because the mean of its divisors is an integer number (38571750).

Almost surely, 2^438367420 is an apocalyptic number.

It is an amenable number.

438367420 is an abundant number, since it is smaller than the sum of its proper divisors (487354580).

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

438367420 is a wasteful number, since it uses less digits than its factorization.

438367420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122637 (or 122635 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 438367420 is about 20937.2256996957. The cubic root of 438367420 is about 759.6486256611.

The spelling of 438367420 in words is "four hundred thirty-eight million, three hundred sixty-seven thousand, four hundred twenty".