400306606 has 8 divisors (see below), whose sum is σ = 686239920. Its totient is φ = 171559968.

The previous prime is 400306601. The next prime is 400306607. The reversal of 400306606 is 606603004.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400306601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14296651 + ... + 14296678.

It is an arithmetic number, because the mean of its divisors is an integer number (85779990).

Almost surely, 2^400306606 is an apocalyptic number.

400306606 is a deficient number, since it is larger than the sum of its proper divisors (285933314).

400306606 is a wasteful number, since it uses less digits than its factorization.

400306606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28593338.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 400306606 is about 20007.6636816996. The cubic root of 400306606 is about 736.9945093414.

The spelling of 400306606 in words is "four hundred million, three hundred six thousand, six hundred six".