406031946 has 8 divisors (see below), whose sum is σ = 812063904. Its totient is φ = 135343980.

The previous prime is 406031911. The next prime is 406031963. The reversal of 406031946 is 649130604.

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

406031946 is an admirable number.

It is a super-4 number, since 4×406031946⁴ (a number of 36 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33835990 + ... + 33836001.

It is an arithmetic number, because the mean of its divisors is an integer number (101507988).

Almost surely, 2^406031946 is an apocalyptic number.

406031946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

406031946 is a wasteful number, since it uses less digits than its factorization.

406031946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67671996.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 406031946 is about 20150.2343906963. The cubic root of 406031946 is about 740.4914838241.

The spelling of 406031946 in words is "four hundred six million, thirty-one thousand, nine hundred forty-six".