388367145 has 48 divisors (see below), whose sum is σ = 685116432. Its totient is φ = 203489280.

The previous prime is 388367141. The next prime is 388367153. The reversal of 388367145 is 541763883.

It can be written as a sum of positive squares in 8 ways, for example, as 39275289 + 349091856 = 6267^2 + 18684^2 .

It is not a de Polignac number, because 388367145 - 2² = 388367141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 388367145.

It is not an unprimeable number, because it can be changed into a prime (388367141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 842215 + ... + 842675.

It is an arithmetic number, because the mean of its divisors is an integer number (14273259).

Almost surely, 2^388367145 is an apocalyptic number.

It is an amenable number.

388367145 is a deficient number, since it is larger than the sum of its proper divisors (296749287).

388367145 is a wasteful number, since it uses less digits than its factorization.

388367145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762 (or 759 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 388367145 is about 19707.0328816897. The cubic root of 388367145 is about 729.5932837941.

The spelling of 388367145 in words is "three hundred eighty-eight million, three hundred sixty-seven thousand, one hundred forty-five".