4306381 has 2 divisors, whose sum is σ = 4306382. Its totient is φ = 4306380.

The previous prime is 4306373. The next prime is 4306399. The reversal of 4306381 is 1836034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4268356 + 38025 = 2066^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 4306381 - 2³ = 4306373 is a prime.

It is a super-2 number, since 2×4306381² = 37089834634322, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4306301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2153190 + 2153191.

It is an arithmetic number, because the mean of its divisors is an integer number (2153191).

Almost surely, 2^4306381 is an apocalyptic number.

It is an amenable number.

4306381 is a deficient number, since it is larger than the sum of its proper divisors (1).

4306381 is an equidigital number, since it uses as much as digits as its factorization.

4306381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4306381 is about 2075.1821606789. The cubic root of 4306381 is about 162.6937302868.

The spelling of 4306381 in words is "four million, three hundred six thousand, three hundred eighty-one".