4466381 has 4 divisors (see below), whose sum is σ = 4587132. Its totient is φ = 4345632.

The previous prime is 4466339. The next prime is 4466401. The reversal of 4466381 is 1836644.

Added to its reverse (1836644) it gives a triangular number (6303025 = T₃₅₅₀).

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 3276100 + 1190281 = 1810^2 + 1091^2 .

It is a cyclic number.

It is not a de Polignac number, because 4466381 - 2¹⁴ = 4449997 is a prime.

It is a super-2 number, since 2×4466381² = 39897118474322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4466981) 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, 60320 + ... + 60393.

It is an arithmetic number, because the mean of its divisors is an integer number (1146783).

Almost surely, 2^4466381 is an apocalyptic number.

It is an amenable number.

4466381 is a deficient number, since it is larger than the sum of its proper divisors (120751).

4466381 is a wasteful number, since it uses less digits than its factorization.

4466381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120750.

The product of its digits is 13824, while the sum is 32.

The square root of 4466381 is about 2113.3814137538. The cubic root of 4466381 is about 164.6841954564.

Adding to 4466381 its reverse (1836644), we get a triangular number (6303025 = T₃₅₅₀).

It can be divided in two parts, 44663 and 81, that added together give a palindrome (44744).

The spelling of 4466381 in words is "four million, four hundred sixty-six thousand, three hundred eighty-one".