387145252 has 24 divisors (see below), whose sum is σ = 730550016. Its totient is φ = 178454688.

The previous prime is 387145237. The next prime is 387145271. The reversal of 387145252 is 252541783.

387145252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×387145252² = 299762892292287008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40563 + ... + 49189.

It is an arithmetic number, because the mean of its divisors is an integer number (30439584).

Almost surely, 2^387145252 is an apocalyptic number.

It is an amenable number.

387145252 is a deficient number, since it is larger than the sum of its proper divisors (343404764).

387145252 is a wasteful number, since it uses less digits than its factorization.

387145252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9507 (or 9505 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 387145252 is about 19676.0070136194. The cubic root of 387145252 is about 728.8273234438.

The spelling of 387145252 in words is "three hundred eighty-seven million, one hundred forty-five thousand, two hundred fifty-two".