4007381 has 8 divisors (see below), whose sum is σ = 4691904. Its totient is φ = 3350880.

The previous prime is 4007369. The next prime is 4007407. The reversal of 4007381 is 1837004.

It is a happy number.

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 4007381 - 2¹⁴ = 3990997 is a prime.

It is a super-2 number, since 2×4007381² = 32118204958322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4007321) 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 7 ways as a sum of consecutive naturals, for example, 6695 + ... + 7268.

It is an arithmetic number, because the mean of its divisors is an integer number (586488).

Almost surely, 2^4007381 is an apocalyptic number.

4007381 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4007381 is a deficient number, since it is larger than the sum of its proper divisors (684523).

4007381 is a wasteful number, since it uses less digits than its factorization.

4007381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14011.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 4007381 is about 2001.8443995476. The cubic root of 4007381 is about 158.8376835956.

The spelling of 4007381 in words is "four million, seven thousand, three hundred eighty-one".