54357440 has 56 divisors (see below), whose sum is σ = 132965952. Its totient is φ = 21150720.

The previous prime is 54357421. The next prime is 54357463. The reversal of 54357440 is 4475345.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 54357397 and 54357406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9545 + ... + 14135.

It is an arithmetic number, because the mean of its divisors is an integer number (2374392).

Almost surely, 2^54357440 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 54357440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66482976).

54357440 is an abundant number, since it is smaller than the sum of its proper divisors (78608512).

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

54357440 is a wasteful number, since it uses less digits than its factorization.

54357440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4645 (or 4635 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 54357440 is about 7372.7498262182. The cubic root of 54357440 is about 378.8084560154.

The spelling of 54357440 in words is "fifty-four million, three hundred fifty-seven thousand, four hundred forty".