409072142 has 4 divisors (see below), whose sum is σ = 613608216. Its totient is φ = 204536070.

The previous prime is 409072117. The next prime is 409072151. The reversal of 409072142 is 241270904.

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

It is a congruent number.

It is an unprimeable 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, 102268034 + ... + 102268037.

It is an arithmetic number, because the mean of its divisors is an integer number (153402054).

Almost surely, 2^409072142 is an apocalyptic number.

409072142 is a deficient number, since it is larger than the sum of its proper divisors (204536074).

409072142 is a wasteful number, since it uses less digits than its factorization.

409072142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204536073.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 409072142 is about 20225.5319336724. The cubic root of 409072142 is about 742.3350528251.

The spelling of 409072142 in words is "four hundred nine million, seventy-two thousand, one hundred forty-two".