1438619142 has 32 divisors (see below), whose sum is σ = 2902636800. Its totient is φ = 475318368.

The previous prime is 1438619093. The next prime is 1438619177. The reversal of 1438619142 is 2419168341.

It is a self number, because there is not a number n which added to its sum of digits gives 1438619142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765508 + ... + 767384.

It is an arithmetic number, because the mean of its divisors is an integer number (90707400).

Almost surely, 2^1438619142 is an apocalyptic number.

1438619142 is an abundant number, since it is smaller than the sum of its proper divisors (1464017658).

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

1438619142 is a wasteful number, since it uses less digits than its factorization.

1438619142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940.

The product of its digits is 41472, while the sum is 39.

The square root of 1438619142 is about 37929.1331564538. The cubic root of 1438619142 is about 1128.8821644611.

The spelling of 1438619142 in words is "one billion, four hundred thirty-eight million, six hundred nineteen thousand, one hundred forty-two".