406239346 has 8 divisors (see below), whose sum is σ = 611168220. Its totient is φ = 202516608.

The previous prime is 406239311. The next prime is 406239349. The reversal of 406239346 is 643932604.

It can be written as a sum of positive squares in 2 ways, for example, as 383572225 + 22667121 = 19585^2 + 4761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (406239349) 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, 300691 + ... + 302038.

Almost surely, 2^406239346 is an apocalyptic number.

406239346 is a deficient number, since it is larger than the sum of its proper divisors (204928874).

406239346 is a wasteful number, since it uses less digits than its factorization.

406239346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603068.

The product of its (nonzero) digits is 93312, while the sum is 37.

The square root of 406239346 is about 20155.3800758011. The cubic root of 406239346 is about 740.6175427000.

The spelling of 406239346 in words is "four hundred six million, two hundred thirty-nine thousand, three hundred forty-six".