3406681438 has 4 divisors (see below), whose sum is σ = 5110022160. Its totient is φ = 1703340718.

The previous prime is 3406681433. The next prime is 3406681441. The reversal of 3406681438 is 8341866043.

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

It is a junction number, because it is equal to n+sod(n) for n = 3406681394 and 3406681403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3406681433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 851670358 + ... + 851670361.

It is an arithmetic number, because the mean of its divisors is an integer number (1277505540).

Almost surely, 2^3406681438 is an apocalyptic number.

3406681438 is a deficient number, since it is larger than the sum of its proper divisors (1703340722).

3406681438 is a wasteful number, since it uses less digits than its factorization.

3406681438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703340721.

The product of its (nonzero) digits is 331776, while the sum is 43.

The square root of 3406681438 is about 58366.7836872994. The cubic root of 3406681438 is about 1504.6789362322.

The spelling of 3406681438 in words is "three billion, four hundred six million, six hundred eighty-one thousand, four hundred thirty-eight".