438946542 has 12 divisors (see below), whose sum is σ = 951050880. Its totient is φ = 146315508.

The previous prime is 438946517. The next prime is 438946549. The reversal of 438946542 is 245649834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438946549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12192942 + ... + 12192977.

It is an arithmetic number, because the mean of its divisors is an integer number (79254240).

Almost surely, 2^438946542 is an apocalyptic number.

438946542 is an abundant number, since it is smaller than the sum of its proper divisors (512104338).

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

438946542 is a wasteful number, since it uses less digits than its factorization.

438946542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24385927 (or 24385924 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 438946542 is about 20951.0510953508. The cubic root of 438946542 is about 759.9829993889.

The spelling of 438946542 in words is "four hundred thirty-eight million, nine hundred forty-six thousand, five hundred forty-two".