54286440 has 256 divisors, whose sum is σ = 195955200. Its totient is φ = 11894784.

The previous prime is 54286429. The next prime is 54286447. The reversal of 54286440 is 4468245.

It is not an unprimeable number, because it can be changed into a prime (54286447) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 609916 + ... + 610004.

It is an arithmetic number, because the mean of its divisors is an integer number (765450).

Almost surely, 2^54286440 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 54286440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97977600).

54286440 is an abundant number, since it is smaller than the sum of its proper divisors (141668760).

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

54286440 is a wasteful number, since it uses less digits than its factorization.

54286440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 54286440 is about 7367.9332244531. The cubic root of 54286440 is about 378.6434548744.

The spelling of 54286440 in words is "fifty-four million, two hundred eighty-six thousand, four hundred forty".