3641387438 has 8 divisors (see below), whose sum is σ = 5882241288. Its totient is φ = 1680640344.

The previous prime is 3641387423. The next prime is 3641387461. The reversal of 3641387438 is 8347831463.

3641387438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3641387392 and 3641387401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70026656 + ... + 70026707.

It is an arithmetic number, because the mean of its divisors is an integer number (735280161).

Almost surely, 2^3641387438 is an apocalyptic number.

3641387438 is a deficient number, since it is larger than the sum of its proper divisors (2240853850).

3641387438 is a wasteful number, since it uses less digits than its factorization.

3641387438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140053378.

The product of its digits is 1161216, while the sum is 47.

The square root of 3641387438 is about 60343.9097009798. The cubic root of 3641387438 is about 1538.4697564488.

The spelling of 3641387438 in words is "three billion, six hundred forty-one million, three hundred eighty-seven thousand, four hundred thirty-eight".