409138036 has 6 divisors (see below), whose sum is σ = 715991570. Its totient is φ = 204569016.

The previous prime is 409138027. The next prime is 409138043. The reversal of 409138036 is 630831904.

It can be written as a sum of positive squares in only one way, i.e., 400400100 + 8737936 = 20010^2 + 2956^2 .

It is a junction number, because it is equal to n+sod(n) for n = 409137992 and 409138010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51142251 + ... + 51142258.

Almost surely, 2^409138036 is an apocalyptic number.

It is an amenable number.

409138036 is a deficient number, since it is larger than the sum of its proper divisors (306853534).

409138036 is a wasteful number, since it uses less digits than its factorization.

409138036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102284513 (or 102284511 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 409138036 is about 20227.1608487202. The cubic root of 409138036 is about 742.3749095274.

The spelling of 409138036 in words is "four hundred nine million, one hundred thirty-eight thousand, thirty-six".