542344240 has 20 divisors (see below), whose sum is σ = 1260950544. Its totient is φ = 216937664.

The previous prime is 542344219. The next prime is 542344241. The reversal of 542344240 is 42443245.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×542344240² = 588274549322355200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 542344199 and 542344208.

It is not an unprimeable number, because it can be changed into a prime (542344241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3389572 + ... + 3389731.

Almost surely, 2^542344240 is an apocalyptic number.

It is an amenable number.

542344240 is an abundant number, since it is smaller than the sum of its proper divisors (718606304).

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

542344240 is a wasteful number, since it uses less digits than its factorization.

542344240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779316 (or 6779310 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

The square root of 542344240 is about 23288.2854671614. The cubic root of 542344240 is about 815.5019628464.

Adding to 542344240 its reverse (42443245), we get a palindrome (584787485).

The spelling of 542344240 in words is "five hundred forty-two million, three hundred forty-four thousand, two hundred forty".