1438628601 has 8 divisors (see below), whose sum is σ = 1918695744. Its totient is φ = 958823600.

The previous prime is 1438628599. The next prime is 1438628627. The reversal of 1438628601 is 1068268341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1438628601 - 2¹ = 1438628599 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1438628601.

It is not an unprimeable number, because it can be changed into a prime (1438628641) 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, 52350 + ... + 74951.

It is an arithmetic number, because the mean of its divisors is an integer number (239836968).

Almost surely, 2^1438628601 is an apocalyptic number.

It is an amenable number.

1438628601 is a deficient number, since it is larger than the sum of its proper divisors (480067143).

1438628601 is a wasteful number, since it uses less digits than its factorization.

1438628601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131071.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1438628601 is about 37929.2578493173. The cubic root of 1438628601 is about 1128.8846386097.

The spelling of 1438628601 in words is "one billion, four hundred thirty-eight million, six hundred twenty-eight thousand, six hundred one".