438285982 has 32 divisors (see below), whose sum is σ = 691939584. Its totient is φ = 208017600.

The previous prime is 438285949. The next prime is 438285983. The reversal of 438285982 is 289582834.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438285983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482773 + ... + 483679.

It is an arithmetic number, because the mean of its divisors is an integer number (21623112).

Almost surely, 2^438285982 is an apocalyptic number.

438285982 is a deficient number, since it is larger than the sum of its proper divisors (253653602).

438285982 is a wasteful number, since it uses less digits than its factorization.

438285982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104.

The product of its digits is 1105920, while the sum is 49.

The square root of 438285982 is about 20935.2807958241. The cubic root of 438285982 is about 759.6015813377.

The spelling of 438285982 in words is "four hundred thirty-eight million, two hundred eighty-five thousand, nine hundred eighty-two".