400144050 has 60 divisors (see below), whose sum is σ = 1111818906. Its totient is φ = 106704000.

The previous prime is 400144049. The next prime is 400144061. The reversal of 400144050 is 50441004.

It can be written as a sum of positive squares in 3 ways, for example, as 343397961 + 56746089 = 18531^2 + 7533^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 45351 + ... + 53450.

Almost surely, 2^400144050 is an apocalyptic number.

400144050 is an abundant number, since it is smaller than the sum of its proper divisors (711674856).

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

400144050 is a wasteful number, since it uses less digits than its factorization.

400144050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98825 (or 98811 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 400144050 is about 20003.6009258333. The cubic root of 400144050 is about 736.8947365691.

Adding to 400144050 its reverse (50441004), we get a palindrome (450585054).

The spelling of 400144050 in words is "four hundred million, one hundred forty-four thousand, fifty".