1438834 has 16 divisors (see below), whose sum is σ = 2327040. Its totient is φ = 665280.

The previous prime is 1438831. The next prime is 1438837. The reversal of 1438834 is 4388341.

It is an interprime number because it is at equal distance from previous prime (1438831) and next prime (1438837).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1438796 and 1438805.

It is not an unprimeable number, because it can be changed into a prime (1438831) 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, 922 + ... + 1930.

It is an arithmetic number, because the mean of its divisors is an integer number (145440).

2^1438834 is an apocalyptic number.

1438834 is a deficient number, since it is larger than the sum of its proper divisors (888206).

1438834 is a wasteful number, since it uses less digits than its factorization.

1438834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065.

The product of its digits is 9216, while the sum is 31.

The square root of 1438834 is about 1199.5140682793. The cubic root of 1438834 is about 112.8938361241.

The spelling of 1438834 in words is "one million, four hundred thirty-eight thousand, eight hundred thirty-four".