542324421 has 6 divisors (see below), whose sum is σ = 783357510. Its totient is φ = 361549608.

The previous prime is 542324371. The next prime is 542324423. The reversal of 542324421 is 124423245.

542324421 is a `hidden beast` number, since 5 + 4 + 232 + 4 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 320016321 + 222308100 = 17889^2 + 14910^2 .

It is not a de Polignac number, because 542324421 - 2¹¹ = 542322373 is a prime.

It is a super-2 number, since 2×542324421² = 588231555225970482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542324423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30129126 + ... + 30129143.

It is an arithmetic number, because the mean of its divisors is an integer number (130559585).

Almost surely, 2^542324421 is an apocalyptic number.

It is an amenable number.

542324421 is a deficient number, since it is larger than the sum of its proper divisors (241033089).

542324421 is a wasteful number, since it uses less digits than its factorization.

542324421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60258275 (or 60258272 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 542324421 is about 23287.8599489090. The cubic root of 542324421 is about 815.4920290386.

Adding to 542324421 its reverse (124423245), we get a palindrome (666747666).

It can be divided in two parts, 54232 and 4421, that added together give a triangular number (58653 = T₃₄₂).

The spelling of 542324421 in words is "five hundred forty-two million, three hundred twenty-four thousand, four hundred twenty-one".