381980750 has 128 divisors (see below), whose sum is σ = 808704000. Its totient is φ = 134467200.

The previous prime is 381980747. The next prime is 381980777. The reversal of 381980750 is 57089183.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 381980698 and 381980707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6474221 + ... + 6474279.

It is an arithmetic number, because the mean of its divisors is an integer number (6318000).

Almost surely, 2^381980750 is an apocalyptic number.

381980750 is an abundant number, since it is smaller than the sum of its proper divisors (426723250).

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

381980750 is a wasteful number, since it uses less digits than its factorization.

381980750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 381980750 is about 19544.3278216469. The cubic root of 381980750 is about 725.5719624454.

The spelling of 381980750 in words is "three hundred eighty-one million, nine hundred eighty thousand, seven hundred fifty".