54020440 has 16 divisors (see below), whose sum is σ = 121546080. Its totient is φ = 21608160.

The previous prime is 54020429. The next prime is 54020443. The reversal of 54020440 is 4402045.

It is a super-3 number, since 3×54020440³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54020443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675216 + ... + 675295.

It is an arithmetic number, because the mean of its divisors is an integer number (7596630).

Almost surely, 2^54020440 is an apocalyptic number.

It is an amenable number.

54020440 is an abundant number, since it is smaller than the sum of its proper divisors (67525640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54020440 is a wasteful number, since it uses less digits than its factorization.

54020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350522 (or 1350518 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 54020440 is about 7349.8598626096. The cubic root of 54020440 is about 378.0239992974.

Adding to 54020440 its reverse (4402045), we get a palindrome (58422485).

The spelling of 54020440 in words is "fifty-four million, twenty thousand, four hundred forty".