400205368 has 8 divisors (see below), whose sum is σ = 750385080. Its totient is φ = 200102680.

The previous prime is 400205363. The next prime is 400205369. The reversal of 400205368 is 863502004.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400205363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25012828 + ... + 25012843.

It is an arithmetic number, because the mean of its divisors is an integer number (93798135).

Almost surely, 2^400205368 is an apocalyptic number.

It is an amenable number.

400205368 is a deficient number, since it is larger than the sum of its proper divisors (350179712).

400205368 is a wasteful number, since it uses less digits than its factorization.

400205368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50025677 (or 50025673 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 400205368 is about 20005.1335411689. The cubic root of 400205368 is about 736.9323751841.

The spelling of 400205368 in words is "four hundred million, two hundred five thousand, three hundred sixty-eight".