2918434 has 4 divisors (see below), whose sum is σ = 4377654. Its totient is φ = 1459216.

The previous prime is 2918431. The next prime is 2918437. The reversal of 2918434 is 4348192.

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

It is an interprime number because it is at equal distance from previous prime (2918431) and next prime (2918437).

It can be written as a sum of positive squares in only one way, i.e., 2900209 + 18225 = 1703^2 + 135^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 2918396 and 2918405.

It is not an unprimeable number, because it can be changed into a prime (2918431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 729607 + ... + 729610.

2^2918434 is an apocalyptic number.

2918434 is a deficient number, since it is larger than the sum of its proper divisors (1459220).

2918434 is a wasteful number, since it uses less digits than its factorization.

2918434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459219.

The product of its digits is 6912, while the sum is 31.

The square root of 2918434 is about 1708.3424715203. The cubic root of 2918434 is about 142.9058339738.

The spelling of 2918434 in words is "two million, nine hundred eighteen thousand, four hundred thirty-four".