1438145148 has 96 divisors (see below), whose sum is σ = 3875477760. Its totient is φ = 410941440.

The previous prime is 1438145147. The next prime is 1438145167. The reversal of 1438145148 is 8415418341.

It is a super-2 number, since 2×1438145148² = 4136522933431883808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438145147) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 160236 + ... + 168972.

It is an arithmetic number, because the mean of its divisors is an integer number (40369560).

Almost surely, 2^1438145148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438145148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1937738880).

1438145148 is an abundant number, since it is smaller than the sum of its proper divisors (2437332612).

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

1438145148 is a wasteful number, since it uses less digits than its factorization.

1438145148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8827 (or 8825 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 1438145148 is about 37922.8842257548. The cubic root of 1438145148 is about 1128.7581700616.

The spelling of 1438145148 in words is "one billion, four hundred thirty-eight million, one hundred forty-five thousand, one hundred forty-eight".