380143775 has 24 divisors (see below), whose sum is σ = 515150064. Its totient is φ = 275974400.

The previous prime is 380143769. The next prime is 380143781. The reversal of 380143775 is 577341083.

It is an interprime number because it is at equal distance from previous prime (380143769) and next prime (380143781).

It is not a de Polignac number, because 380143775 - 2¹⁰ = 380142751 is a prime.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234869 + ... + 236481.

It is an arithmetic number, because the mean of its divisors is an integer number (21464586).

Almost surely, 2^380143775 is an apocalyptic number.

380143775 is a deficient number, since it is larger than the sum of its proper divisors (135006289).

380143775 is a wasteful number, since it uses less digits than its factorization.

380143775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 380143775 is about 19497.2760918032. The cubic root of 380143775 is about 724.4069823711.

The spelling of 380143775 in words is "three hundred eighty million, one hundred forty-three thousand, seven hundred seventy-five".