1438151748 has 24 divisors (see below), whose sum is σ = 3660750240. Its totient is φ = 435803520.

The previous prime is 1438151747. The next prime is 1438151773. The reversal of 1438151748 is 8471518341.

It is not an unprimeable number, because it can be changed into a prime (1438151747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5447413 + ... + 5447676.

It is an arithmetic number, because the mean of its divisors is an integer number (152531260).

Almost surely, 2^1438151748 is an apocalyptic number.

It is an amenable number.

1438151748 is an abundant number, since it is smaller than the sum of its proper divisors (2222598492).

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

1438151748 is a wasteful number, since it uses less digits than its factorization.

1438151748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10895107 (or 10895105 counting only the distinct ones).

The product of its digits is 107520, while the sum is 42.

The square root of 1438151748 is about 37922.9712443527. The cubic root of 1438151748 is about 1128.7598967748.

The spelling of 1438151748 in words is "one billion, four hundred thirty-eight million, one hundred fifty-one thousand, seven hundred forty-eight".