400051450 has 12 divisors (see below), whose sum is σ = 744095790. Its totient is φ = 160020560.

The previous prime is 400051427. The next prime is 400051459. The reversal of 400051450 is 54150004.

It can be written as a sum of positive squares in 3 ways, for example, as 367527241 + 32524209 = 19171^2 + 5703^2 .

It is not an unprimeable number, because it can be changed into a prime (400051459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4000465 + ... + 4000564.

Almost surely, 2^400051450 is an apocalyptic number.

400051450 is a deficient number, since it is larger than the sum of its proper divisors (344044340).

400051450 is a wasteful number, since it uses less digits than its factorization.

400051450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8001041 (or 8001036 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 400051450 is about 20001.2862086417. The cubic root of 400051450 is about 736.8378889438.

The spelling of 400051450 in words is "four hundred million, fifty-one thousand, four hundred fifty".