405632116 has 6 divisors (see below), whose sum is σ = 709856210. Its totient is φ = 202816056.

The previous prime is 405632113. The next prime is 405632131. The reversal of 405632116 is 611236504.

It can be written as a sum of positive squares in only one way, i.e., 350812900 + 54819216 = 18730^2 + 7404^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405632111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50704011 + ... + 50704018.

Almost surely, 2^405632116 is an apocalyptic number.

It is an amenable number.

405632116 is a deficient number, since it is larger than the sum of its proper divisors (304224094).

405632116 is a wasteful number, since it uses less digits than its factorization.

405632116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101408033 (or 101408031 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 405632116 is about 20140.3107225286. The cubic root of 405632116 is about 740.2483437223.

The spelling of 405632116 in words is "four hundred five million, six hundred thirty-two thousand, one hundred sixteen".