406240194 has 16 divisors (see below), whose sum is σ = 860273568. Its totient is φ = 127447872.

The previous prime is 406240189. The next prime is 406240217. The reversal of 406240194 is 491042604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1991272 + ... + 1991475.

It is an arithmetic number, because the mean of its divisors is an integer number (53767098).

Almost surely, 2^406240194 is an apocalyptic number.

406240194 is an abundant number, since it is smaller than the sum of its proper divisors (454033374).

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

406240194 is a wasteful number, since it uses less digits than its factorization.

406240194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982769.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 406240194 is about 20155.4011123570. The cubic root of 406240194 is about 740.6180580310.

Adding to 406240194 its reverse (491042604), we get a palindrome (897282798).

The spelling of 406240194 in words is "four hundred six million, two hundred forty thousand, one hundred ninety-four".