54421404 has 36 divisors (see below), whose sum is σ = 132759816. Its totient is φ = 17349728.

The previous prime is 54421397. The next prime is 54421481. The reversal of 54421404 is 40412445.

It is a happy number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2062 + ... + 10634.

Almost surely, 2^54421404 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 54421404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66379908).

54421404 is an abundant number, since it is smaller than the sum of its proper divisors (78338412).

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

54421404 is a wasteful number, since it uses less digits than its factorization.

54421404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8626 (or 8601 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 54421404 is about 7377.0864167366. The cubic root of 54421404 is about 378.9569827929.

Adding to 54421404 its reverse (40412445), we get a palindrome (94833849).

The spelling of 54421404 in words is "fifty-four million, four hundred twenty-one thousand, four hundred four".