400497006 has 32 divisors (see below), whose sum is σ = 985840128. Its totient is φ = 105625440.

The previous prime is 400497001. The next prime is 400497007. The reversal of 400497006 is 600794004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400497001) 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 15 ways as a sum of consecutive naturals, for example, 366210 + ... + 367301.

It is an arithmetic number, because the mean of its divisors is an integer number (30807504).

Almost surely, 2^400497006 is an apocalyptic number.

400497006 is an abundant number, since it is smaller than the sum of its proper divisors (585343122).

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

400497006 is a wasteful number, since it uses less digits than its factorization.

400497006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733536.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 400497006 is about 20012.4212927871. The cubic root of 400497006 is about 737.1113377180. Note that the first 3 decimals are identical.

The spelling of 400497006 in words is "four hundred million, four hundred ninety-seven thousand, six".