542137240 has 16 divisors (see below), whose sum is σ = 1219808880. Its totient is φ = 216854880.

The previous prime is 542137237. The next prime is 542137273. The reversal of 542137240 is 42731245.

It is a junction number, because it is equal to n+sod(n) for n = 542137199 and 542137208.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6776676 + ... + 6776755.

It is an arithmetic number, because the mean of its divisors is an integer number (76238055).

Almost surely, 2^542137240 is an apocalyptic number.

It is an amenable number.

542137240 is an abundant number, since it is smaller than the sum of its proper divisors (677671640).

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

542137240 is a wasteful number, since it uses less digits than its factorization.

542137240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13553442 (or 13553438 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 542137240 is about 23283.8407484676. The cubic root of 542137240 is about 815.3981970244.

Adding to 542137240 its reverse (42731245), we get a palindrome (584868485).

The spelling of 542137240 in words is "five hundred forty-two million, one hundred thirty-seven thousand, two hundred forty".