542344261 has 8 divisors (see below), whose sum is σ = 557302680. Its totient is φ = 527401728.

The previous prime is 542344259. The next prime is 542344267. The reversal of 542344261 is 162443245.

It can be written as a sum of positive squares in 4 ways, for example, as 29095236 + 513249025 = 5394^2 + 22655^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542344261 - 2¹ = 542344259 is a prime.

It is a super-2 number, since 2×542344261² = 588274594879272242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542344267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107385 + ... + 112321.

It is an arithmetic number, because the mean of its divisors is an integer number (69662835).

Almost surely, 2^542344261 is an apocalyptic number.

It is an amenable number.

542344261 is a deficient number, since it is larger than the sum of its proper divisors (14958419).

542344261 is a wasteful number, since it uses less digits than its factorization.

542344261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943.

The product of its digits is 23040, while the sum is 31.

The square root of 542344261 is about 23288.2859180318. The cubic root of 542344261 is about 815.5019733720.

The spelling of 542344261 in words is "five hundred forty-two million, three hundred forty-four thousand, two hundred sixty-one".