380525990 has 16 divisors (see below), whose sum is σ = 737635248. Its totient is φ = 140501856.

The previous prime is 380525989. The next prime is 380525993. The reversal of 380525990 is 99525083.

It is a super-3 number, since 3×380525990³ (a number of 27 digits) contains 333 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 (380525993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463432 + ... + 1463691.

It is an arithmetic number, because the mean of its divisors is an integer number (46102203).

Almost surely, 2^380525990 is an apocalyptic number.

380525990 is a deficient number, since it is larger than the sum of its proper divisors (357109258).

380525990 is a wasteful number, since it uses less digits than its factorization.

380525990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927143.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 380525990 is about 19507.0753830501. The cubic root of 380525990 is about 724.6496856927.

The spelling of 380525990 in words is "three hundred eighty million, five hundred twenty-five thousand, nine hundred ninety".