4542465421 has 8 divisors (see below), whose sum is σ = 4904466840. Its totient is φ = 4182261312.

The previous prime is 4542465379. The next prime is 4542465439. The reversal of 4542465421 is 1245642454.

It can be written as a sum of positive squares in 4 ways, for example, as 724955625 + 3817509796 = 26925^2 + 61786^2 .

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 4542465421 - 2¹³ = 4542457229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542465821) 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 7 ways as a sum of consecutive naturals, for example, 444070 + ... + 454183.

It is an arithmetic number, because the mean of its divisors is an integer number (613058355).

Almost surely, 2^4542465421 is an apocalyptic number.

It is an amenable number.

4542465421 is a deficient number, since it is larger than the sum of its proper divisors (362001419).

4542465421 is a wasteful number, since it uses less digits than its factorization.

4542465421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898655.

The product of its digits is 153600, while the sum is 37.

The square root of 4542465421 is about 67397.8146604176. The cubic root of 4542465421 is about 1656.1406230255.

The spelling of 4542465421 in words is "four billion, five hundred forty-two million, four hundred sixty-five thousand, four hundred twenty-one".