400409606 has 8 divisors (see below), whose sum is σ = 603128160. Its totient is φ = 199366888.

The previous prime is 400409579. The next prime is 400409617. The reversal of 400409606 is 606904004.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418361 + ... + 419316.

It is an arithmetic number, because the mean of its divisors is an integer number (75391020).

Almost surely, 2^400409606 is an apocalyptic number.

400409606 is a deficient number, since it is larger than the sum of its proper divisors (202718554).

400409606 is a wasteful number, since it uses less digits than its factorization.

400409606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837918.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 400409606 is about 20010.2375298246. The cubic root of 400409606 is about 737.0577141645.

The spelling of 400409606 in words is "four hundred million, four hundred nine thousand, six hundred six".