4001401 has 4 divisors (see below), whose sum is σ = 4012672. Its totient is φ = 3990132.

The previous prime is 4001399. The next prime is 4001407. The reversal of 4001401 is 1041004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4001401 - 2¹ = 4001399 is a prime.

It is a super-2 number, since 2×4001401² = 32022419925602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5085 + ... + 5818.

It is an arithmetic number, because the mean of its divisors is an integer number (1003168).

Almost surely, 2^4001401 is an apocalyptic number.

It is an amenable number.

4001401 is a deficient number, since it is larger than the sum of its proper divisors (11271).

4001401 is a wasteful number, since it uses less digits than its factorization.

4001401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 4001401 is about 2000.3502193366. The cubic root of 4001401 is about 158.7586359408.

Adding to 4001401 its reverse (1041004), we get a palindrome (5042405).

The spelling of 4001401 in words is "four million, one thousand, four hundred one".