409742212 has 12 divisors (see below), whose sum is σ = 782235216. Its totient is φ = 186246440.

The previous prime is 409742191. The next prime is 409742213. The reversal of 409742212 is 212247904.

It is not an unprimeable number, because it can be changed into a prime (409742213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4656118 + ... + 4656205.

It is an arithmetic number, because the mean of its divisors is an integer number (65186268).

Almost surely, 2^409742212 is an apocalyptic number.

It is an amenable number.

409742212 is a deficient number, since it is larger than the sum of its proper divisors (372493004).

409742212 is a wasteful number, since it uses less digits than its factorization.

409742212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9312338 (or 9312336 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 409742212 is about 20242.0901094724. The cubic root of 409742212 is about 742.7401526036.

The spelling of 409742212 in words is "four hundred nine million, seven hundred forty-two thousand, two hundred twelve".