340806404 has 6 divisors (see below), whose sum is σ = 596411214. Its totient is φ = 170403200.

The previous prime is 340806373. The next prime is 340806407. The reversal of 340806404 is 404608043.

It can be written as a sum of positive squares in only one way, i.e., 287370304 + 53436100 = 16952^2 + 7310^2 .

It is a super-2 number, since 2×340806404² = 232298010014822432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340806407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42600797 + ... + 42600804.

It is an arithmetic number, because the mean of its divisors is an integer number (99401869).

Almost surely, 2^340806404 is an apocalyptic number.

It is an amenable number.

340806404 is a deficient number, since it is larger than the sum of its proper divisors (255604810).

340806404 is a wasteful number, since it uses less digits than its factorization.

340806404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85201605 (or 85201603 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 340806404 is about 18460.9426628220. The cubic root of 340806404 is about 698.5045653484.

The spelling of 340806404 in words is "three hundred forty million, eight hundred six thousand, four hundred four".