400606603 has 4 divisors (see below), whose sum is σ = 401000760. Its totient is φ = 400212448.

The previous prime is 400606589. The next prime is 400606607. The reversal of 400606603 is 306606004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400606603 - 2⁹ = 400606091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400606607) 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, 195550 + ... + 197587.

It is an arithmetic number, because the mean of its divisors is an integer number (100250190).

Almost surely, 2^400606603 is an apocalyptic number.

400606603 is a deficient number, since it is larger than the sum of its proper divisors (394157).

400606603 is a wasteful number, since it uses less digits than its factorization.

400606603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394156.

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

The square root of 400606603 is about 20015.1593298679. The cubic root of 400606603 is about 737.1785690349.

The spelling of 400606603 in words is "four hundred million, six hundred six thousand, six hundred three".