438494550 has 48 divisors (see below), whose sum is σ = 1171122960. Its totient is φ = 107936640.

The previous prime is 438494519. The next prime is 438494569. The reversal of 438494550 is 55494834.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110485 + ... + 114384.

It is an arithmetic number, because the mean of its divisors is an integer number (24398395).

Almost surely, 2^438494550 is an apocalyptic number.

438494550 is an abundant number, since it is smaller than the sum of its proper divisors (732628410).

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

438494550 is a wasteful number, since it uses less digits than its factorization.

438494550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224897 (or 224892 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 438494550 is about 20940.2614596857. The cubic root of 438494550 is about 759.7220532557.

The spelling of 438494550 in words is "four hundred thirty-eight million, four hundred ninety-four thousand, five hundred fifty".