388260365 has 16 divisors (see below), whose sum is σ = 505355760. Its totient is φ = 285204480.

The previous prime is 388260359. The next prime is 388260427. The reversal of 388260365 is 563062883.

It can be written as a sum of positive squares in 8 ways, for example, as 22915369 + 365344996 = 4787^2 + 19114^2 .

It is not a de Polignac number, because 388260365 - 2⁴ = 388260349 is a prime.

It is a super-2 number, since 2×388260365² = 301492222059866450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52220 + ... + 59189.

It is an arithmetic number, because the mean of its divisors is an integer number (31584735).

Almost surely, 2^388260365 is an apocalyptic number.

It is an amenable number.

388260365 is a deficient number, since it is larger than the sum of its proper divisors (117095395).

388260365 is a wasteful number, since it uses less digits than its factorization.

388260365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111472.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 388260365 is about 19704.3235103365. The cubic root of 388260365 is about 729.5264114090.

The spelling of 388260365 in words is "three hundred eighty-eight million, two hundred sixty thousand, three hundred sixty-five".