4650381 has 6 divisors (see below), whose sum is σ = 6717230. Its totient is φ = 3100248.

The previous prime is 4650337. The next prime is 4650389. The reversal of 4650381 is 1830564.

4650381 is a `hidden beast` number, since 4 + 650 + 3 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4447881 + 202500 = 2109^2 + 450^2 .

It is not a de Polignac number, because 4650381 - 2⁷ = 4650253 is a prime.

It is a super-2 number, since 2×4650381² = 43252086890322, 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 (4650389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258346 + ... + 258363.

Almost surely, 2^4650381 is an apocalyptic number.

It is an amenable number.

4650381 is a deficient number, since it is larger than the sum of its proper divisors (2066849).

4650381 is a wasteful number, since it uses less digits than its factorization.

4650381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516715 (or 516712 counting only the distinct ones).

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

The square root of 4650381 is about 2156.4742057349. The cubic root of 4650381 is about 166.9153119797.

The spelling of 4650381 in words is "four million, six hundred fifty thousand, three hundred eighty-one".