380164909 has 4 divisors (see below), whose sum is σ = 383929020. Its totient is φ = 376400800.

The previous prime is 380164903. The next prime is 380164927. The reversal of 380164909 is 909461083.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161036100 + 219128809 = 12690^2 + 14803^2 .

It is a cyclic number.

It is not a de Polignac number, because 380164909 - 2⁵ = 380164877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380164903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1881904 + ... + 1882105.

It is an arithmetic number, because the mean of its divisors is an integer number (95982255).

Almost surely, 2^380164909 is an apocalyptic number.

It is an amenable number.

380164909 is a deficient number, since it is larger than the sum of its proper divisors (3764111).

380164909 is a wasteful number, since it uses less digits than its factorization.

380164909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764110.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 380164909 is about 19497.8180574135. The cubic root of 380164909 is about 724.4204065319.

The spelling of 380164909 in words is "three hundred eighty million, one hundred sixty-four thousand, nine hundred nine".