4244001401421 has 6 divisors (see below), whose sum is σ = 6130224246510. Its totient is φ = 2829334267608.

The previous prime is 4244001401417. The next prime is 4244001401467. The reversal of 4244001401421 is 1241041004424.

It is a happy number.

4244001401421 is a `hidden beast` number, since 42 + 440 + 0 + 1 + 40 + 142 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2225004806025 + 2018996595396 = 1491645^2 + 1420914^2 .

It is not a de Polignac number, because 4244001401421 - 2² = 4244001401417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4244001401411) 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 5 ways as a sum of consecutive naturals, for example, 235777855626 + ... + 235777855643.

It is an arithmetic number, because the mean of its divisors is an integer number (1021704041085).

Almost surely, 2^{4244001401421} is an apocalyptic number.

It is an amenable number.

4244001401421 is a deficient number, since it is larger than the sum of its proper divisors (1886222845089).

4244001401421 is a wasteful number, since it uses less digits than its factorization.

4244001401421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471555711275 (or 471555711272 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 4244001401421 its reverse (1241041004424), we get a palindrome (5485042405845).

The spelling of 4244001401421 in words is "four trillion, two hundred forty-four billion, one million, four hundred one thousand, four hundred twenty-one".