380629887 has 32 divisors (see below), whose sum is σ = 561600000. Its totient is φ = 227399040.

The previous prime is 380629877. The next prime is 380629891. The reversal of 380629887 is 788926083.

It is not a de Polignac number, because 380629887 - 2⁷ = 380629759 is a prime.

It is a super-2 number, since 2×380629887² = 289758221755265538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380629877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 978289 + ... + 978677.

It is an arithmetic number, because the mean of its divisors is an integer number (17550000).

Almost surely, 2^380629887 is an apocalyptic number.

380629887 is a deficient number, since it is larger than the sum of its proper divisors (180970113).

380629887 is a wasteful number, since it uses less digits than its factorization.

380629887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The square root of 380629887 is about 19509.7382606738. The cubic root of 380629887 is about 724.7156313217.

The spelling of 380629887 in words is "three hundred eighty million, six hundred twenty-nine thousand, eight hundred eighty-seven".