400461836 has 6 divisors (see below), whose sum is σ = 700808220. Its totient is φ = 200230916.

The previous prime is 400461833. The next prime is 400461863. The reversal of 400461836 is 638164004.

It is not an unprimeable number, because it can be changed into a prime (400461833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50057726 + ... + 50057733.

It is an arithmetic number, because the mean of its divisors is an integer number (116801370).

Almost surely, 2^400461836 is an apocalyptic number.

It is an amenable number.

400461836 is a deficient number, since it is larger than the sum of its proper divisors (300346384).

400461836 is a wasteful number, since it uses less digits than its factorization.

400461836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100115463 (or 100115461 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 400461836 is about 20011.5425692274. The cubic root of 400461836 is about 737.0897603910.

The spelling of 400461836 in words is "four hundred million, four hundred sixty-one thousand, eight hundred thirty-six".