387218041 has 12 divisors (see below), whose sum is σ = 470022912. Its totient is φ = 317469768.

The previous prime is 387218021. The next prime is 387218089. The reversal of 387218041 is 140812783.

It is a happy number.

It is not a de Polignac number, because 387218041 - 2¹⁹ = 386693753 is a prime.

It is a super-2 number, since 2×387218041² = 299875622551755362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 387217988 and 387218006.

It is not an unprimeable number, because it can be changed into a prime (387218011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170665 + ... + 172918.

It is an arithmetic number, because the mean of its divisors is an integer number (39168576).

Almost surely, 2^387218041 is an apocalyptic number.

It is an amenable number.

387218041 is a deficient number, since it is larger than the sum of its proper divisors (82804871).

387218041 is a wasteful number, since it uses less digits than its factorization.

387218041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343620 (or 343613 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 387218041 is about 19677.8566160037. The cubic root of 387218041 is about 728.8729973327.

The spelling of 387218041 in words is "three hundred eighty-seven million, two hundred eighteen thousand, forty-one".