438707142 has 48 divisors (see below), whose sum is σ = 960942528. Its totient is φ = 144645120.

The previous prime is 438707123. The next prime is 438707147. The reversal of 438707142 is 241707834.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 438707097 and 438707106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438707147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1017667 + ... + 1018097.

It is an arithmetic number, because the mean of its divisors is an integer number (20019636).

Almost surely, 2^438707142 is an apocalyptic number.

438707142 is an abundant number, since it is smaller than the sum of its proper divisors (522235386).

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

438707142 is a wasteful number, since it uses less digits than its factorization.

438707142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 438707142 is about 20945.3369989599. The cubic root of 438707142 is about 759.8448101873.

The spelling of 438707142 in words is "four hundred thirty-eight million, seven hundred seven thousand, one hundred forty-two".