542469421 has 8 divisors (see below), whose sum is σ = 609598080. Its totient is φ = 478969392.

The previous prime is 542469419. The next prime is 542469443. The reversal of 542469421 is 124964245.

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 542469421 - 2¹ = 542469419 is a prime.

It is a super-3 number, since 3×542469421³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542469481) 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, 906841 + ... + 907438.

It is an arithmetic number, because the mean of its divisors is an integer number (76199760).

Almost surely, 2^542469421 is an apocalyptic number.

It is an amenable number.

542469421 is a deficient number, since it is larger than the sum of its proper divisors (67128659).

542469421 is a wasteful number, since it uses less digits than its factorization.

542469421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814315.

The product of its digits is 69120, while the sum is 37.

The square root of 542469421 is about 23290.9729509095. The cubic root of 542469421 is about 815.5647012884.

The spelling of 542469421 in words is "five hundred forty-two million, four hundred sixty-nine thousand, four hundred twenty-one".