542469 has 16 divisors (see below), whose sum is σ = 788480. Its totient is φ = 330480.

The previous prime is 542467. The next prime is 542483. The reversal of 542469 is 964245.

It is not a de Polignac number, because 542469 - 2¹ = 542467 is a prime.

It is a super-2 number, since 2×542469² = 588545231922, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (8640) is a multiple of the sum of its prime divisors (360).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 542469.

It is not an unprimeable number, because it can be changed into a prime (542461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1614 + ... + 1920.

It is an arithmetic number, because the mean of its divisors is an integer number (49280).

2⁵⁴²⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

542469 is a deficient number, since it is larger than the sum of its proper divisors (246011).

542469 is a wasteful number, since it uses less digits than its factorization.

542469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its digits is 8640, while the sum is 30.

The square root of 542469 is about 736.5249486609. The cubic root of 542469 is about 81.5564490307.

The spelling of 542469 in words is "five hundred forty-two thousand, four hundred sixty-nine".