401400050 has 24 divisors (see below), whose sum is σ = 766786116. Its totient is φ = 156219840.

The previous prime is 401400047. The next prime is 401400053. The reversal of 401400050 is 50004104.

It is an interprime number because it is at equal distance from previous prime (401400047) and next prime (401400053).

It can be written as a sum of positive squares in 6 ways, for example, as 262796521 + 138603529 = 16211^2 + 11773^2 .

It is a super-2 number, since 2×401400050² = 322244000280005000, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 401399998 and 401400034.

It is not an unprimeable number, because it can be changed into a prime (401400053) 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 11 ways as a sum of consecutive naturals, for example, 106637 + ... + 110336.

Almost surely, 2^401400050 is an apocalyptic number.

401400050 is a deficient number, since it is larger than the sum of its proper divisors (365386066).

401400050 is a wasteful number, since it uses less digits than its factorization.

401400050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217022 (or 217017 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 401400050 is about 20034.9706762950. The cubic root of 401400050 is about 737.6649367769.

Adding to 401400050 its reverse (50004104), we get a palindrome (451404154).

The spelling of 401400050 in words is "four hundred one million, four hundred thousand, fifty".