361439 has 4 divisors (see below), whose sum is σ = 389256. Its totient is φ = 333624.

The previous prime is 361433. The next prime is 361441. The reversal of 361439 is 934163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 934163 = 577 ⋅1619.

It is a cyclic number.

It is not a de Polignac number, because 361439 - 2⁸ = 361183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361439.

It is not an unprimeable number, because it can be changed into a prime (361433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13889 + ... + 13914.

It is an arithmetic number, because the mean of its divisors is an integer number (97314).

2³⁶¹⁴³⁹ is an apocalyptic number.

361439 is a deficient number, since it is larger than the sum of its proper divisors (27817).

361439 is a wasteful number, since it uses less digits than its factorization.

361439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27816.

The product of its digits is 1944, while the sum is 26.

The square root of 361439 is about 601.1979707218. The cubic root of 361439 is about 71.2325246975.

The spelling of 361439 in words is "three hundred sixty-one thousand, four hundred thirty-nine".