438469830 has 48 divisors (see below), whose sum is σ = 1158724944. Its totient is φ = 115007040.

The previous prime is 438469819. The next prime is 438469847. The reversal of 438469830 is 38964834.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34444 + ... + 45423.

It is an arithmetic number, because the mean of its divisors is an integer number (24140103).

Almost surely, 2^438469830 is an apocalyptic number.

438469830 is an abundant number, since it is smaller than the sum of its proper divisors (720255114).

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

438469830 is a wasteful number, since it uses less digits than its factorization.

438469830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79941 (or 79938 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 438469830 is about 20939.6712008570. The cubic root of 438469830 is about 759.7077766190.

The spelling of 438469830 in words is "four hundred thirty-eight million, four hundred sixty-nine thousand, eight hundred thirty".