400420606 has 8 divisors (see below), whose sum is σ = 601134624. Its totient is φ = 200042400.

The previous prime is 400420597. The next prime is 400420619. The reversal of 400420606 is 606024004.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80950 + ... + 85753.

It is an arithmetic number, because the mean of its divisors is an integer number (75141828).

Almost surely, 2^400420606 is an apocalyptic number.

400420606 is a deficient number, since it is larger than the sum of its proper divisors (200714018).

400420606 is a wasteful number, since it uses less digits than its factorization.

400420606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167906.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 400420606 is about 20010.5123872429. The cubic root of 400420606 is about 737.0644635536.

The spelling of 400420606 in words is "four hundred million, four hundred twenty thousand, six hundred six".