2238438342 has 32 divisors (see below), whose sum is σ = 5153789952. Its totient is φ = 634883904.

The previous prime is 2238438313. The next prime is 2238438343. The reversal of 2238438342 is 2438348322.

It is a self number, because there is not a number n which added to its sum of digits gives 2238438342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238438343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188758 + ... + 200265.

It is an arithmetic number, because the mean of its divisors is an integer number (161055936).

Almost surely, 2^2238438342 is an apocalyptic number.

2238438342 is an abundant number, since it is smaller than the sum of its proper divisors (2915351610).

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

2238438342 is a wasteful number, since it uses less digits than its factorization.

2238438342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389172.

The product of its digits is 221184, while the sum is 39.

The square root of 2238438342 is about 47312.1373645284. The cubic root of 2238438342 is about 1308.1223886918.

It can be divided in two parts, 22384 and 38342, that added together give a triangular number (60726 = T₃₄₈).

The spelling of 2238438342 in words is "two billion, two hundred thirty-eight million, four hundred thirty-eight thousand, three hundred forty-two".