4542869 has 4 divisors (see below), whose sum is σ = 4547244. Its totient is φ = 4538496.

The previous prime is 4542851. The next prime is 4542877. The reversal of 4542869 is 9682454.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2140369 + 2402500 = 1463^2 + 1550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4542869 is a prime.

It is a super-2 number, since 2×4542869² = 41275317502322, 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 (4542809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359 + ... + 3035.

It is an arithmetic number, because the mean of its divisors is an integer number (1136811).

Almost surely, 2^4542869 is an apocalyptic number.

It is an amenable number.

4542869 is a deficient number, since it is larger than the sum of its proper divisors (4375).

4542869 is a wasteful number, since it uses less digits than its factorization.

4542869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374.

The product of its digits is 69120, while the sum is 38.

The square root of 4542869 is about 2131.4007131462. The cubic root of 4542869 is about 165.6189668622.

The spelling of 4542869 in words is "four million, five hundred forty-two thousand, eight hundred sixty-nine".