542213540 has 96 divisors (see below), whose sum is σ = 1298505600. Its totient is φ = 188421120.

The previous prime is 542213491. The next prime is 542213549. The reversal of 542213540 is 45312245.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (542213549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 479696 + ... + 480824.

It is an arithmetic number, because the mean of its divisors is an integer number (13526100).

Almost surely, 2^542213540 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 542213540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (649252800).

542213540 is an abundant number, since it is smaller than the sum of its proper divisors (756292060).

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

542213540 is a wasteful number, since it uses less digits than its factorization.

542213540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 542213540 is about 23285.4791662100. The cubic root of 542213540 is about 815.4364480793.

Adding to 542213540 its reverse (45312245), we get a palindrome (587525785).

The spelling of 542213540 in words is "five hundred forty-two million, two hundred thirteen thousand, five hundred forty".