1438227960 has 128 divisors (see below), whose sum is σ = 4656960000. Its totient is φ = 353235456.

The previous prime is 1438227937. The next prime is 1438227983. The reversal of 1438227960 is 697228341.

It is an interprime number because it is at equal distance from previous prime (1438227937) and next prime (1438227983).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1027341 + ... + 1028739.

It is an arithmetic number, because the mean of its divisors is an integer number (36382500).

Almost surely, 2^1438227960 is an apocalyptic number.

1438227960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438227960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2328480000).

1438227960 is an abundant number, since it is smaller than the sum of its proper divisors (3218732040).

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

1438227960 is a wasteful number, since it uses less digits than its factorization.

1438227960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085 (or 2081 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1438227960 is about 37923.9760573704. The cubic root of 1438227960 is about 1128.7798352201.

The spelling of 1438227960 in words is "one billion, four hundred thirty-eight million, two hundred twenty-seven thousand, nine hundred sixty".