54242040 has 32 divisors (see below), whose sum is σ = 162726480. Its totient is φ = 14464512.

The previous prime is 54242021. The next prime is 54242047. The reversal of 54242040 is 4024245.

It is a junction number, because it is equal to n+sod(n) for n = 54241998 and 54242016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54242047) 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, 225889 + ... + 226128.

Almost surely, 2^54242040 is an apocalyptic number.

It is an amenable number.

54242040 is an abundant number, since it is smaller than the sum of its proper divisors (108484440).

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

54242040 is a wasteful number, since it uses less digits than its factorization.

54242040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452031 (or 452027 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 54242040 is about 7364.9195514955. The cubic root of 54242040 is about 378.5401979356.

Adding to 54242040 its reverse (4024245), we get a palindrome (58266285).

The spelling of 54242040 in words is "fifty-four million, two hundred forty-two thousand, forty".