1438988 has 6 divisors (see below), whose sum is σ = 2518236. Its totient is φ = 719492.

The previous prime is 1438979. The next prime is 1438991. The reversal of 1438988 is 8898341.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179870 + ... + 179877.

It is an arithmetic number, because the mean of its divisors is an integer number (419706).

2^1438988 is an apocalyptic number.

It is an amenable number.

1438988 is a deficient number, since it is larger than the sum of its proper divisors (1079248).

1438988 is a wasteful number, since it uses less digits than its factorization.

1438988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359751 (or 359749 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 1438988 is about 1199.5782592228. The cubic root of 1438988 is about 112.8978636979.

The spelling of 1438988 in words is "one million, four hundred thirty-eight thousand, nine hundred eighty-eight".