438949834 has 4 divisors (see below), whose sum is σ = 658424754. Its totient is φ = 219474916.

The previous prime is 438949783. The next prime is 438949879.

It is a happy number.

438949834 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 432432025 + 6517809 = 20795^2 + 2553^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109737457 + ... + 109737460.

Almost surely, 2^438949834 is an apocalyptic number.

438949834 is a deficient number, since it is larger than the sum of its proper divisors (219474920).

438949834 is a wasteful number, since it uses less digits than its factorization.

438949834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219474919.

The product of its digits is 2985984, while the sum is 52.

The square root of 438949834 is about 20951.1296592809. The cubic root of 438949834 is about 759.9848992844.

The spelling of 438949834 in words is "four hundred thirty-eight million, nine hundred forty-nine thousand, eight hundred thirty-four".