439340254 has 4 divisors (see below), whose sum is σ = 659010384. Its totient is φ = 219670126.

The previous prime is 439340221. The next prime is 439340269. The reversal of 439340254 is 452043934.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109835062 + ... + 109835065.

It is an arithmetic number, because the mean of its divisors is an integer number (164752596).

Almost surely, 2^439340254 is an apocalyptic number.

439340254 is a deficient number, since it is larger than the sum of its proper divisors (219670130).

439340254 is a wasteful number, since it uses less digits than its factorization.

439340254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219670129.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 439340254 is about 20960.4449857344. Note that the first 3 decimals coincide. The cubic root of 439340254 is about 760.2101531025.

The spelling of 439340254 in words is "four hundred thirty-nine million, three hundred forty thousand, two hundred fifty-four".