407542 has 4 divisors (see below), whose sum is σ = 611316. Its totient is φ = 203770.

The previous prime is 407527. The next prime is 407567. The reversal of 407542 is 245704.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

407542 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 101884 + ... + 101887.

It is an arithmetic number, because the mean of its divisors is an integer number (152829).

2⁴⁰⁷⁵⁴² is an apocalyptic number.

407542 is a deficient number, since it is larger than the sum of its proper divisors (203774).

407542 is a wasteful number, since it uses less digits than its factorization.

407542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203773.

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

The square root of 407542 is about 638.3901628315. The cubic root of 407542 is about 74.1408323663.

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

The spelling of 407542 in words is "four hundred seven thousand, five hundred forty-two".