438949400 has 48 divisors (see below), whose sum is σ = 1074280200. Its totient is φ = 166337280.

The previous prime is 438949397. The next prime is 438949421. The reversal of 438949400 is 4949834.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 53957 + ... + 61556.

Almost surely, 2^438949400 is an apocalyptic number.

438949400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

438949400 is an abundant number, since it is smaller than the sum of its proper divisors (635330800).

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

438949400 is a wasteful number, since it uses less digits than its factorization.

438949400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115548 (or 115539 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 438949400 is about 20951.1193018416. The cubic root of 438949400 is about 759.9846488127.

The spelling of 438949400 in words is "four hundred thirty-eight million, nine hundred forty-nine thousand, four hundred".