54400442 has 16 divisors (see below), whose sum is σ = 86821632. Its totient is φ = 25475520.

The previous prime is 54400421. The next prime is 54400447. The reversal of 54400442 is 24400445.

It is not an unprimeable number, because it can be changed into a prime (54400447) 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, 3383 + ... + 10965.

It is an arithmetic number, because the mean of its divisors is an integer number (5426352).

Almost surely, 2^54400442 is an apocalyptic number.

54400442 is a deficient number, since it is larger than the sum of its proper divisors (32421190).

54400442 is a wasteful number, since it uses less digits than its factorization.

54400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 54400442 is about 7375.6655292929. The cubic root of 54400442 is about 378.9083210788.

Adding to 54400442 its reverse (24400445), we get a palindrome (78800887).

The spelling of 54400442 in words is "fifty-four million, four hundred thousand, four hundred forty-two".