3430918 has 4 divisors (see below), whose sum is σ = 5146380. Its totient is φ = 1715458.

The previous prime is 3430913. The next prime is 3430939. The reversal of 3430918 is 8190343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8190343 = 7 ⋅1170049.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3430913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 857728 + ... + 857731.

It is an arithmetic number, because the mean of its divisors is an integer number (1286595).

Almost surely, 2^3430918 is an apocalyptic number.

3430918 is a deficient number, since it is larger than the sum of its proper divisors (1715462).

3430918 is a wasteful number, since it uses less digits than its factorization.

3430918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715461.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3430918 is about 1852.2737378692. The cubic root of 3430918 is about 150.8238813269.

Subtracting from 3430918 its sum of digits (28), we obtain a triangular number (3430890 = T₂₆₁₉).

Adding to 3430918 its product of nonzero digits (2592), we get a triangular number (3433510 = T₂₆₂₀).

The spelling of 3430918 in words is "three million, four hundred thirty thousand, nine hundred eighteen".