1438956 has 18 divisors (see below), whose sum is σ = 3637452. Its totient is φ = 479640.

The previous prime is 1438939. The next prime is 1438961. The reversal of 1438956 is 6598341.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 39971 = 1438956 / (1 + 4 + 3 + 8 + 9 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1438956.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 19950 + ... + 20021.

2^1438956 is an apocalyptic number.

It is an amenable number.

1438956 is an abundant number, since it is smaller than the sum of its proper divisors (2198496).

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

1438956 is a wasteful number, since it uses less digits than its factorization.

1438956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39981 (or 39976 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1438956 is about 1199.5649211277. The cubic root of 1438956 is about 112.8970268231.

The spelling of 1438956 in words is "one million, four hundred thirty-eight thousand, nine hundred fifty-six".