387302013 has 32 divisors (see below), whose sum is σ = 657054720. Its totient is φ = 220875120.

The previous prime is 387301979. The next prime is 387302021. The reversal of 387302013 is 310203783.

It is not a de Polignac number, because 387302013 - 2¹⁴ = 387285629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387302033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109198 + ... + 112688.

It is an arithmetic number, because the mean of its divisors is an integer number (20532960).

Almost surely, 2^387302013 is an apocalyptic number.

It is an amenable number.

387302013 is a deficient number, since it is larger than the sum of its proper divisors (269752707).

387302013 is a wasteful number, since it uses less digits than its factorization.

387302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4094 (or 4088 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 387302013 is about 19679.9901676805. The cubic root of 387302013 is about 728.9256812584.

Adding to 387302013 its reverse (310203783), we get a palindrome (697505796).

The spelling of 387302013 in words is "three hundred eighty-seven million, three hundred two thousand, thirteen".