438322542 has 24 divisors (see below), whose sum is σ = 1019771496. Its totient is φ = 125234928.

The previous prime is 438322541. The next prime is 438322553. The reversal of 438322542 is 245223834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438322541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 745153 + ... + 745740.

It is an arithmetic number, because the mean of its divisors is an integer number (42490479).

Almost surely, 2^438322542 is an apocalyptic number.

438322542 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

438322542 is an abundant number, since it is smaller than the sum of its proper divisors (581448954).

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

438322542 is a wasteful number, since it uses less digits than its factorization.

438322542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490912 (or 1490905 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 438322542 is about 20936.1539447913. The cubic root of 438322542 is about 759.6227016889.

The spelling of 438322542 in words is "four hundred thirty-eight million, three hundred twenty-two thousand, five hundred forty-two".