438923450 has 96 divisors (see below), whose sum is σ = 971187840. Its totient is φ = 144460800.

The previous prime is 438923437. The next prime is 438923453. The reversal of 438923450 is 54329834.

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

It is not an unprimeable number, because it can be changed into a prime (438923453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1047341 + ... + 1047759.

It is an arithmetic number, because the mean of its divisors is an integer number (10116540).

Almost surely, 2^438923450 is an apocalyptic number.

It is a pronic number, being equal to 20950×20951.

438923450 is an abundant number, since it is smaller than the sum of its proper divisors (532264390).

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

438923450 is a wasteful number, since it uses less digits than its factorization.

438923450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 438923450 is about 20950.4999940336. The cubic root of 438923450 is about 759.9696721508.

The spelling of 438923450 in words is "four hundred thirty-eight million, nine hundred twenty-three thousand, four hundred fifty".