1438434 has 24 divisors (see below), whose sum is σ = 3142620. Its totient is φ = 475488.

The previous prime is 1438417. The next prime is 1438447. The reversal of 1438434 is 4348341.

It can be written as a sum of positive squares in 2 ways, for example, as 1432809 + 5625 = 1197^2 + 75^2 .

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1438398 and 1438407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2572 + ... + 3080.

2^1438434 is an apocalyptic number.

1438434 is an abundant number, since it is smaller than the sum of its proper divisors (1704186).

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

1438434 is a wasteful number, since it uses less digits than its factorization.

1438434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 671 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1438434 is about 1199.3473225050. The cubic root of 1438434 is about 112.8833735505.

The spelling of 1438434 in words is "one million, four hundred thirty-eight thousand, four hundred thirty-four".