1438052801 has 4 divisors (see below), whose sum is σ = 1438179204. Its totient is φ = 1437926400.

The previous prime is 1438052773. The next prime is 1438052809. The reversal of 1438052801 is 1082508341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169624576 + 1268428225 = 13024^2 + 35615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1438052801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1438052809) 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 3 ways as a sum of consecutive naturals, for example, 44240 + ... + 69521.

It is an arithmetic number, because the mean of its divisors is an integer number (359544801).

Almost surely, 2^1438052801 is an apocalyptic number.

It is an amenable number.

1438052801 is a deficient number, since it is larger than the sum of its proper divisors (126403).

1438052801 is a wasteful number, since it uses less digits than its factorization.

1438052801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126402.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 1438052801 is about 37921.6666432265. Note that the first 4 decimals coincide. The cubic root of 1438052801 is about 1128.7340093891.

The spelling of 1438052801 in words is "one billion, four hundred thirty-eight million, fifty-two thousand, eight hundred one".