415642 has 4 divisors (see below), whose sum is σ = 623466. Its totient is φ = 207820.

The previous prime is 415631. The next prime is 415643. The reversal of 415642 is 246514.

415642 is nontrivially palindromic in base 7.

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

It can be written as a sum of positive squares in only one way, i.e., 410881 + 4761 = 641^2 + 69^2 .

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 not an unprimeable number, because it can be changed into a prime (415643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103909 + ... + 103912.

2⁴¹⁵⁶⁴² is an apocalyptic number.

415642 is a deficient number, since it is larger than the sum of its proper divisors (207824).

415642 is a wasteful number, since it uses less digits than its factorization.

415642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207823.

The product of its digits is 960, while the sum is 22.

The square root of 415642 is about 644.7030324110. The cubic root of 415642 is about 74.6288029041.

The spelling of 415642 in words is "four hundred fifteen thousand, six hundred forty-two".