1438441942 has 48 divisors (see below), whose sum is σ = 2668699872. Its totient is φ = 578497920.

The previous prime is 1438441913. The next prime is 1438441951. The reversal of 1438441942 is 2491448341.

It is a junction number, because it is equal to n+sod(n) for n = 1438441895 and 1438441904.

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, 113442 + ... + 125482.

It is an arithmetic number, because the mean of its divisors is an integer number (55597914).

Almost surely, 2^1438441942 is an apocalyptic number.

1438441942 is a deficient number, since it is larger than the sum of its proper divisors (1230257930).

1438441942 is a wasteful number, since it uses less digits than its factorization.

1438441942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12133 (or 12126 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 1438441942 is about 37926.7971492453. The cubic root of 1438441942 is about 1128.8358130380.

The spelling of 1438441942 in words is "one billion, four hundred thirty-eight million, four hundred forty-one thousand, nine hundred forty-two".