54742420 has 48 divisors (see below), whose sum is σ = 122774400. Its totient is φ = 20442240.

The previous prime is 54742403. The next prime is 54742423. The reversal of 54742420 is 2424745.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54742423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25966 + ... + 27994.

It is an arithmetic number, because the mean of its divisors is an integer number (2557800).

Almost surely, 2^54742420 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 54742420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61387200).

54742420 is an abundant number, since it is smaller than the sum of its proper divisors (68031980).

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

54742420 is a wasteful number, since it uses less digits than its factorization.

54742420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 54742420 is about 7398.8120668118. The cubic root of 54742420 is about 379.7006414245.

The spelling of 54742420 in words is "fifty-four million, seven hundred forty-two thousand, four hundred twenty".