201400424 has 32 divisors (see below), whose sum is σ = 385990920. Its totient is φ = 98482176.

The previous prime is 201400393. The next prime is 201400481. The reversal of 201400424 is 424004102.

It can be written as a sum of positive squares in 4 ways, for example, as 134977924 + 66422500 = 11618^2 + 8150^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183044 + ... + 184140.

Almost surely, 2^201400424 is an apocalyptic number.

It is an amenable number.

201400424 is a deficient number, since it is larger than the sum of its proper divisors (184590496).

201400424 is a wasteful number, since it uses less digits than its factorization.

201400424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1585 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 201400424 is about 14191.5617181479. The cubic root of 201400424 is about 586.1653289913.

Adding to 201400424 its reverse (424004102), we get a palindrome (625404526).

The spelling of 201400424 in words is "two hundred one million, four hundred thousand, four hundred twenty-four".