3667400399 has 4 divisors (see below), whose sum is σ = 3949508136. Its totient is φ = 3385292664.

The previous prime is 3667400381. The next prime is 3667400419. The reversal of 3667400399 is 9930047663.

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

It is a de Polignac number, because none of the positive numbers 2^k-3667400399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3667400309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141053849 + ... + 141053874.

It is an arithmetic number, because the mean of its divisors is an integer number (987377034).

Almost surely, 2^3667400399 is an apocalyptic number.

3667400399 is a deficient number, since it is larger than the sum of its proper divisors (282107737).

3667400399 is a wasteful number, since it uses less digits than its factorization.

3667400399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282107736.

The product of its (nonzero) digits is 734832, while the sum is 47.

The square root of 3667400399 is about 60559.0653742278. The cubic root of 3667400399 is about 1542.1245202454.

The spelling of 3667400399 in words is "three billion, six hundred sixty-seven million, four hundred thousand, three hundred ninety-nine".