400041606 has 16 divisors (see below), whose sum is σ = 811044144. Its totient is φ = 131520384.

The previous prime is 400041589. The next prime is 400041617. The reversal of 400041606 is 606140004.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456231 + ... + 457106.

It is an arithmetic number, because the mean of its divisors is an integer number (50690259).

Almost surely, 2^400041606 is an apocalyptic number.

400041606 is an abundant number, since it is smaller than the sum of its proper divisors (411002538).

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

400041606 is a wasteful number, since it uses less digits than its factorization.

400041606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913415.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 400041606 is about 20001.0401229536. The cubic root of 400041606 is about 736.8318451448.

The spelling of 400041606 in words is "four hundred million, forty-one thousand, six hundred six".