4506381 has 16 divisors (see below), whose sum is σ = 7283520. Its totient is φ = 2730960.

The previous prime is 4506373. The next prime is 4506389. The reversal of 4506381 is 1836054.

It is an interprime number because it is at equal distance from previous prime (4506373) and next prime (4506389).

It is not a de Polignac number, because 4506381 - 2³ = 4506373 is a prime.

It is a super-2 number, since 2×4506381² = 40614939434322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

4506381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4506389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7290 + ... + 7883.

It is an arithmetic number, because the mean of its divisors is an integer number (455220).

Almost surely, 2^4506381 is an apocalyptic number.

It is an amenable number.

4506381 is a deficient number, since it is larger than the sum of its proper divisors (2777139).

4506381 is a wasteful number, since it uses less digits than its factorization.

4506381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15193 (or 15187 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4506381 is about 2122.8238268872. The cubic root of 4506381 is about 165.1743611363.

The spelling of 4506381 in words is "four million, five hundred six thousand, three hundred eighty-one".