54440381 has 8 divisors (see below), whose sum is σ = 56299104. Its totient is φ = 52612560.

The previous prime is 54440369. The next prime is 54440387. The reversal of 54440381 is 18304445.

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 54440381 - 2⁶ = 54440317 is a prime.

It is a super-2 number, since 2×54440381² = 5927510166850322, 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 (54440387) 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 7 ways as a sum of consecutive naturals, for example, 4115 + ... + 11216.

It is an arithmetic number, because the mean of its divisors is an integer number (7037388).

Almost surely, 2^54440381 is an apocalyptic number.

It is an amenable number.

54440381 is a deficient number, since it is larger than the sum of its proper divisors (1858723).

54440381 is a wasteful number, since it uses less digits than its factorization.

54440381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15451.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 54440381 is about 7378.3725170257. The cubic root of 54440381 is about 379.0010257025.

The spelling of 54440381 in words is "fifty-four million, four hundred forty thousand, three hundred eighty-one".