438934193146 has 16 divisors (see below), whose sum is σ = 662155560000. Its totient is φ = 218218489920.

The previous prime is 438934193143. The next prime is 438934193177. The reversal of 438934193146 is 641391439834.

It is not an unprimeable number, because it can be changed into a prime (438934193143) 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, 391896 + ... + 1015603.

It is an arithmetic number, because the mean of its divisors is an integer number (41384722500).

Almost surely, 2^438934193146 is an apocalyptic number.

438934193146 is a deficient number, since it is larger than the sum of its proper divisors (223221366854).

438934193146 is a wasteful number, since it uses less digits than its factorization.

438934193146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408389.

The product of its digits is 6718464, while the sum is 55.

The spelling of 438934193146 in words is "four hundred thirty-eight billion, nine hundred thirty-four million, one hundred ninety-three thousand, one hundred forty-six".