380787700 has 18 divisors (see below), whose sum is σ = 826309526. Its totient is φ = 152315040.

The previous prime is 380787679. The next prime is 380787703. The reversal of 380787700 is 7787083.

It can be written as a sum of positive squares in 3 ways, for example, as 75377124 + 305410576 = 8682^2 + 17476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380787703) 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 5 ways as a sum of consecutive naturals, for example, 1903839 + ... + 1904038.

Almost surely, 2^380787700 is an apocalyptic number.

It is an amenable number.

380787700 is an abundant number, since it is smaller than the sum of its proper divisors (445521826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380787700 is a wasteful number, since it uses less digits than its factorization.

380787700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807891 (or 3807884 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 380787700 is about 19513.7823089221. The cubic root of 380787700 is about 724.8157756257.

The spelling of 380787700 in words is "three hundred eighty million, seven hundred eighty-seven thousand, seven hundred".