4032420381 has 32 divisors (see below), whose sum is σ = 6549888000. Its totient is φ = 2431574640.

The previous prime is 4032420377. The next prime is 4032420461. The reversal of 4032420381 is 1830242304.

4032420381 is a `hidden beast` number, since 40 + 3 + 242 + 0 + 381 = 666.

It is not a de Polignac number, because 4032420381 - 2² = 4032420377 is a prime.

It is a super-2 number, since 2×4032420381² = 32520828258208370322, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4032460381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24990 + ... + 93216.

It is an arithmetic number, because the mean of its divisors is an integer number (204684000).

Almost surely, 2^4032420381 is an apocalyptic number.

It is an amenable number.

4032420381 is a deficient number, since it is larger than the sum of its proper divisors (2517467619).

4032420381 is a wasteful number, since it uses less digits than its factorization.

4032420381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68446 (or 68440 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 4032420381 is about 63501.3415685055. The cubic root of 4032420381 is about 1591.6781960527.

Adding to 4032420381 its reverse (1830242304), we get a palindrome (5862662685).

The spelling of 4032420381 in words is "four billion, thirty-two million, four hundred twenty thousand, three hundred eighty-one".