54106440 has 32 divisors (see below), whose sum is σ = 162319680. Its totient is φ = 14428352.

The previous prime is 54106421. The next prime is 54106441. The reversal of 54106440 is 4460145.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 54106440.

It is not an unprimeable number, because it can be changed into a prime (54106441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225324 + ... + 225563.

It is an arithmetic number, because the mean of its divisors is an integer number (5072490).

Almost surely, 2^54106440 is an apocalyptic number.

It is an amenable number.

54106440 is an abundant number, since it is smaller than the sum of its proper divisors (108213240).

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

54106440 is a wasteful number, since it uses less digits than its factorization.

54106440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450901 (or 450897 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 54106440 is about 7355.7079876787. The cubic root of 54106440 is about 378.2244964135.

Adding to 54106440 its reverse (4460145), we get a palindrome (58566585).

The spelling of 54106440 in words is "fifty-four million, one hundred six thousand, four hundred forty".