400947106 has 16 divisors (see below), whose sum is σ = 701366400. Its totient is φ = 171834180.

The previous prime is 400947103. The next prime is 400947137. The reversal of 400947106 is 601749004.

It is not an unprimeable number, because it can be changed into a prime (400947103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291550 + ... + 292921.

It is an arithmetic number, because the mean of its divisors is an integer number (43835400).

Almost surely, 2^400947106 is an apocalyptic number.

400947106 is a deficient number, since it is larger than the sum of its proper divisors (300419294).

400947106 is an equidigital number, since it uses as much as digits as its factorization.

400947106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584494 (or 584480 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 400947106 is about 20023.6636507908. The cubic root of 400947106 is about 737.3873694130.

It can be divided in two parts, 4009 and 47106, that added together give a palindrome (51115).

The spelling of 400947106 in words is "four hundred million, nine hundred forty-seven thousand, one hundred six".