388002141 has 6 divisors (see below), whose sum is σ = 560447550. Its totient is φ = 258668088.

The previous prime is 388002127. The next prime is 388002161. The reversal of 388002141 is 141200883.

It can be written as a sum of positive squares in only one way, i.e., 386122500 + 1879641 = 19650^2 + 1371^2 .

It is not a de Polignac number, because 388002141 - 2⁶ = 388002077 is a prime.

It is a super-2 number, since 2×388002141² = 301091322841167762, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388002161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21555666 + ... + 21555683.

It is an arithmetic number, because the mean of its divisors is an integer number (93407925).

Almost surely, 2^388002141 is an apocalyptic number.

It is an amenable number.

388002141 is a deficient number, since it is larger than the sum of its proper divisors (172445409).

388002141 is a wasteful number, since it uses less digits than its factorization.

388002141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43111355 (or 43111352 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 388002141 is about 19697.7699499207. The cubic root of 388002141 is about 729.3646445267.

The spelling of 388002141 in words is "three hundred eighty-eight million, two thousand, one hundred forty-one".