438290042 has 8 divisors (see below), whose sum is σ = 657752832. Its totient is φ = 219039100.

The previous prime is 438289949. The next prime is 438290051. The reversal of 438290042 is 240092834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 438289990 and 438290008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47684 + ... + 56127.

It is an arithmetic number, because the mean of its divisors is an integer number (82219104).

Almost surely, 2^438290042 is an apocalyptic number.

438290042 is a deficient number, since it is larger than the sum of its proper divisors (219462790).

438290042 is a wasteful number, since it uses less digits than its factorization.

438290042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105924.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 438290042 is about 20935.3777611009. The cubic root of 438290042 is about 759.6039268176.

The spelling of 438290042 in words is "four hundred thirty-eight million, two hundred ninety thousand, forty-two".