409138038 has 24 divisors (see below), whose sum is σ = 887538288. Its totient is φ = 136214352.

The previous prime is 409138027. The next prime is 409138043. The reversal of 409138038 is 830831904.

It is a junction number, because it is equal to n+sod(n) for n = 409137993 and 409138011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2031 + ... + 28677.

It is an arithmetic number, because the mean of its divisors is an integer number (36980762).

Almost surely, 2^409138038 is an apocalyptic number.

409138038 is an abundant number, since it is smaller than the sum of its proper divisors (478400250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409138038 is a wasteful number, since it uses less digits than its factorization.

409138038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27508 (or 27505 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 409138038 is about 20227.1608981587. The cubic root of 409138038 is about 742.3749107370.

The spelling of 409138038 in words is "four hundred nine million, one hundred thirty-eight thousand, thirty-eight".