340443404 has 12 divisors (see below), whose sum is σ = 680886864. Its totient is φ = 145904304.

The previous prime is 340443391. The next prime is 340443407. The reversal of 340443404 is 404344043.

340443404 is an admirable number.

It is a super-2 number, since 2×340443404² = 231803422654214432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340443407) 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, 6079319 + ... + 6079374.

It is an arithmetic number, because the mean of its divisors is an integer number (56740572).

Almost surely, 2^340443404 is an apocalyptic number.

It is an amenable number.

340443404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

340443404 is a wasteful number, since it uses less digits than its factorization.

340443404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12158704 (or 12158702 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 340443404 is about 18451.1084761865. The cubic root of 340443404 is about 698.2564799931.

Adding to 340443404 its reverse (404344043), we get a palindrome (744787447).

The spelling of 340443404 in words is "three hundred forty million, four hundred forty-three thousand, four hundred four".