542650421 has 8 divisors (see below), whose sum is σ = 575587584. Its totient is φ = 509826240.

The previous prime is 542650417. The next prime is 542650439. The reversal of 542650421 is 124056245.

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 542650421 - 2² = 542650417 is a prime.

It is a super-2 number, since 2×542650421² = 588938958822954482, 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 (542650321) 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, 18245 + ... + 37658.

It is an arithmetic number, because the mean of its divisors is an integer number (71948448).

Almost surely, 2^542650421 is an apocalyptic number.

It is an amenable number.

542650421 is a deficient number, since it is larger than the sum of its proper divisors (32937163).

542650421 is a wasteful number, since it uses less digits than its factorization.

542650421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56491.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 542650421 is about 23294.8582524127. The cubic root of 542650421 is about 815.6553981340.

The spelling of 542650421 in words is "five hundred forty-two million, six hundred fifty thousand, four hundred twenty-one".