1438899 has 16 divisors (see below), whose sum is σ = 2392320. Its totient is φ = 747360.

The previous prime is 1438891. The next prime is 1438901. The reversal of 1438899 is 9988341.

It is not a de Polignac number, because 1438899 - 2³ = 1438891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1438899.

It is not an unprimeable number, because it can be changed into a prime (1438891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2884 + ... + 3345.

It is an arithmetic number, because the mean of its divisors is an integer number (149520).

2^1438899 is an apocalyptic number.

1438899 is a deficient number, since it is larger than the sum of its proper divisors (953421).

1438899 is a wasteful number, since it uses less digits than its factorization.

1438899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250.

The product of its digits is 62208, while the sum is 42.

The square root of 1438899 is about 1199.5411622783. The cubic root of 1438899 is about 112.8955361091.

The spelling of 1438899 in words is "one million, four hundred thirty-eight thousand, eight hundred ninety-nine".