340040438 has 4 divisors (see below), whose sum is σ = 510060660. Its totient is φ = 170020218.

The previous prime is 340040419. The next prime is 340040453. The reversal of 340040438 is 834040043.

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, 85010108 + ... + 85010111.

It is an arithmetic number, because the mean of its divisors is an integer number (127515165).

Almost surely, 2^340040438 is an apocalyptic number.

340040438 is a deficient number, since it is larger than the sum of its proper divisors (170020222).

340040438 is a wasteful number, since it uses less digits than its factorization.

340040438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170020221.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 340040438 is about 18440.1854112154. The cubic root of 340040438 is about 697.9808740172.

The spelling of 340040438 in words is "three hundred forty million, forty thousand, four hundred thirty-eight".