542340420 has 24 divisors (see below), whose sum is σ = 1518553344. Its totient is φ = 144624096.

The previous prime is 542340377. The next prime is 542340431. The reversal of 542340420 is 24043245.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4519444 + ... + 4519563.

It is an arithmetic number, because the mean of its divisors is an integer number (63273056).

Almost surely, 2^542340420 is an apocalyptic number.

It is an amenable number.

542340420 is an abundant number, since it is smaller than the sum of its proper divisors (976212924).

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

542340420 is a wasteful number, since it uses less digits than its factorization.

542340420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9039019 (or 9039017 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 542340420 is about 23288.2034515331. The cubic root of 542340420 is about 815.5000481800.

Adding to 542340420 its reverse (24043245), we get a palindrome (566383665).

The spelling of 542340420 in words is "five hundred forty-two million, three hundred forty thousand, four hundred twenty".