438331949 has 8 divisors (see below), whose sum is σ = 480235392. Its totient is φ = 396771040.

The previous prime is 438331937. The next prime is 438331951. The reversal of 438331949 is 949133834.

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

It is a de Polignac number, because none of the positive numbers 2^k-438331949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438331249) 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, 82949 + ... + 88074.

It is an arithmetic number, because the mean of its divisors is an integer number (60029424).

Almost surely, 2^438331949 is an apocalyptic number.

It is an amenable number.

438331949 is a deficient number, since it is larger than the sum of its proper divisors (41903443).

438331949 is a wasteful number, since it uses less digits than its factorization.

438331949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171267.

The product of its digits is 279936, while the sum is 44.

The square root of 438331949 is about 20936.3786028052. The cubic root of 438331949 is about 759.6281358300.

The spelling of 438331949 in words is "four hundred thirty-eight million, three hundred thirty-one thousand, nine hundred forty-nine".