54039440 has 120 divisors (see below), whose sum is σ = 155757888. Its totient is φ = 17072640.

The previous prime is 54039437. The next prime is 54039451. The reversal of 54039440 is 4493045.

It is a super-2 number, since 2×54039440² = 5840522151027200, which contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 94355 + ... + 94925.

Almost surely, 2^54039440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54039440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77878944).

54039440 is an abundant number, since it is smaller than the sum of its proper divisors (101718448).

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

54039440 is a wasteful number, since it uses less digits than its factorization.

54039440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 54039440 is about 7351.1522906276. The cubic root of 54039440 is about 378.0683134748.

The spelling of 54039440 in words is "fifty-four million, thirty-nine thousand, four hundred forty".