400550200 has 48 divisors (see below), whose sum is σ = 933009480. Its totient is φ = 159922560.

The previous prime is 400550119. The next prime is 400550201. The reversal of 400550200 is 2055004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400550201) 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 11 ways as a sum of consecutive naturals, for example, 129067 + ... + 132133.

Almost surely, 2^400550200 is an apocalyptic number.

400550200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400550200 is an abundant number, since it is smaller than the sum of its proper divisors (532459280).

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

400550200 is a wasteful number, since it uses less digits than its factorization.

400550200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3736 (or 3727 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 400550200 is about 20013.7502732496. The cubic root of 400550200 is about 737.1439706417.

The spelling of 400550200 in words is "four hundred million, five hundred fifty thousand, two hundred".