384689461 has 6 divisors (see below), whose sum is σ = 416557410. Its totient is φ = 355097808.

The previous prime is 384689443. The next prime is 384689489. The reversal of 384689461 is 164986483.

It can be written as a sum of positive squares in 3 ways, for example, as 21215236 + 363474225 = 4606^2 + 19065^2 .

It is not a de Polignac number, because 384689461 - 2⁹ = 384688949 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 (384689401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1137966 + ... + 1138303.

It is an arithmetic number, because the mean of its divisors is an integer number (69426235).

Almost surely, 2^384689461 is an apocalyptic number.

It is an amenable number.

384689461 is a deficient number, since it is larger than the sum of its proper divisors (31867949).

384689461 is a wasteful number, since it uses less digits than its factorization.

384689461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276295 (or 2276282 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 384689461 is about 19613.5020075457. The cubic root of 384689461 is about 727.2829887714.

The spelling of 384689461 in words is "three hundred eighty-four million, six hundred eighty-nine thousand, four hundred sixty-one".