4051381 has 8 divisors (see below), whose sum is σ = 4248000. Its totient is φ = 3856512.

The previous prime is 4051379. The next prime is 4051403. The reversal of 4051381 is 1831504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4051381 - 2¹ = 4051379 is a prime.

It is a super-2 number, since 2×4051381² = 32827376014322, 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 (4051361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7870 + ... + 8368.

It is an arithmetic number, because the mean of its divisors is an integer number (531000).

Almost surely, 2^4051381 is an apocalyptic number.

It is an amenable number.

4051381 is a deficient number, since it is larger than the sum of its proper divisors (196619).

4051381 is a wasteful number, since it uses less digits than its factorization.

4051381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 4051381 is about 2012.8042627141. The cubic root of 4051381 is about 159.4169009911.

Adding to 4051381 its reverse (1831504), we get a palindrome (5882885).

The spelling of 4051381 in words is "four million, fifty-one thousand, three hundred eighty-one".