4378881 has 8 divisors (see below), whose sum is σ = 6287680. Its totient is φ = 2694672.

The previous prime is 4378837. The next prime is 4378897. The reversal of 4378881 is 1888734.

4378881 = T₂₁₃ + T₂₁₄ + ... + T₃₂₉.

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

It is not a de Polignac number, because 4378881 - 2⁶ = 4378817 is a prime.

It is a super-2 number, since 2×4378881² = 38349197624322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 112279 = 4378881 / (4 + 3 + 7 + 8 + 8 + 8 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4378811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56101 + ... + 56178.

It is an arithmetic number, because the mean of its divisors is an integer number (785960).

Almost surely, 2^4378881 is an apocalyptic number.

It is an amenable number.

4378881 is a deficient number, since it is larger than the sum of its proper divisors (1908799).

4378881 is a wasteful number, since it uses less digits than its factorization.

4378881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112295.

The product of its digits is 43008, while the sum is 39.

The square root of 4378881 is about 2092.5775971275. The cubic root of 4378881 is about 163.6016631526.

It can be divided in two parts, 4 and 378881, that added together give a triangular number (378885 = T₈₇₀).

The spelling of 4378881 in words is "four million, three hundred seventy-eight thousand, eight hundred eighty-one".