542407 has 4 divisors (see below), whose sum is σ = 559936. Its totient is φ = 524880.

The previous prime is 542401. The next prime is 542441. The reversal of 542407 is 704245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542407 - 2¹⁹ = 18119 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542401) 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, 8718 + ... + 8779.

It is an arithmetic number, because the mean of its divisors is an integer number (139984).

2⁵⁴²⁴⁰⁷ is an apocalyptic number.

542407 is a deficient number, since it is larger than the sum of its proper divisors (17529).

542407 is a wasteful number, since it uses less digits than its factorization.

542407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17528.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 542407 is about 736.4828579132. The cubic root of 542407 is about 81.5533418224.

It can be divided in two parts, 542 and 407, that added together give a palindrome (949).

The spelling of 542407 in words is "five hundred forty-two thousand, four hundred seven".