1438245 has 24 divisors (see below), whose sum is σ = 2575872. Its totient is φ = 741600.

The previous prime is 1438237. The next prime is 1438253. The reversal of 1438245 is 5428341.

It is an interprime number because it is at equal distance from previous prime (1438237) and next prime (1438253).

It is not a de Polignac number, because 1438245 - 2³ = 1438237 is a prime.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 880 + ... + 1910.

It is an arithmetic number, because the mean of its divisors is an integer number (107328).

2^1438245 is an apocalyptic number.

1438245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1438245 is a deficient number, since it is larger than the sum of its proper divisors (1137627).

1438245 is a wasteful number, since it uses less digits than its factorization.

1438245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1070 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1438245 is about 1199.2685270614. The cubic root of 1438245 is about 112.8784293098.

The spelling of 1438245 in words is "one million, four hundred thirty-eight thousand, two hundred forty-five".