542436 has 24 divisors (see below), whose sum is σ = 1340640. Its totient is φ = 170112.

The previous prime is 542401. The next prime is 542441. The reversal of 542436 is 634245.

It is a d-powerful number, because it can be written as 5 + 4⁵ + 4⁷ + 2¹⁹ + 3⁶ + 6 .

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 542436.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1126 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (55860).

2⁵⁴²⁴³⁶ is an apocalyptic number.

It is an amenable number.

542436 is an abundant number, since it is smaller than the sum of its proper divisors (798204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542436 is a wasteful number, since it uses less digits than its factorization.

542436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683 (or 2681 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 542436 is about 736.5025458204. The cubic root of 542436 is about 81.5547952235.

Subtracting 542436 from its reverse (634245), we obtain a square (91809 = 303²).

It can be divided in two parts, 5424 and 36, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 542436 in words is "five hundred forty-two thousand, four hundred thirty-six".