542421400 has 48 divisors (see below), whose sum is σ = 1265811840. Its totient is φ = 216163200.

The previous prime is 542421391. The next prime is 542421401. The reversal of 542421400 is 4124245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542421401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50505 + ... + 60295.

It is an arithmetic number, because the mean of its divisors is an integer number (26371080).

Almost surely, 2^542421400 is an apocalyptic number.

542421400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 542421400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632905920).

542421400 is an abundant number, since it is smaller than the sum of its proper divisors (723390440).

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

542421400 is a wasteful number, since it uses less digits than its factorization.

542421400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084 (or 10075 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 542421400 is about 23289.9420351361. The cubic root of 542421400 is about 815.5406351772.

Adding to 542421400 its reverse (4124245), we get a palindrome (546545645).

The spelling of 542421400 in words is "five hundred forty-two million, four hundred twenty-one thousand, four hundred".