1438053320 has 32 divisors (see below), whose sum is σ = 3529768320. Its totient is φ = 522928320.

The previous prime is 1438053317. The next prime is 1438053371. The reversal of 1438053320 is 233508341.

1438053320 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1633712 + ... + 1634591.

It is an arithmetic number, because the mean of its divisors is an integer number (110305260).

Almost surely, 2^1438053320 is an apocalyptic number.

1438053320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1438053320 is an abundant number, since it is smaller than the sum of its proper divisors (2091715000).

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

1438053320 is a wasteful number, since it uses less digits than its factorization.

1438053320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268325 (or 3268321 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1438053320 is about 37921.6734862796. The cubic root of 1438053320 is about 1128.7341451775.

The spelling of 1438053320 in words is "one billion, four hundred thirty-eight million, fifty-three thousand, three hundred twenty".