2039401 has 16 divisors (see below), whose sum is σ = 2552704. Its totient is φ = 1586304.

The previous prime is 2039383. The next prime is 2039407. The reversal of 2039401 is 1049302.

It is a cyclic number.

It is not a de Polignac number, because 2039401 - 2¹¹ = 2037353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2039407) 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 15 ways as a sum of consecutive naturals, for example, 6490 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (159544).

2^2039401 is an apocalyptic number.

2039401 is the 825-th hex number.

It is an amenable number.

2039401 is a deficient number, since it is larger than the sum of its proper divisors (513303).

2039401 is a wasteful number, since it uses less digits than its factorization.

2039401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2039401 is about 1428.0759783709. The cubic root of 2039401 is about 126.8140996439.

Subtracting from 2039401 its reverse (1049302), we obtain a palindrome (990099).

It can be divided in two parts, 203 and 9401, that added together give a square (9604 = 98²).

The spelling of 2039401 in words is "two million, thirty-nine thousand, four hundred one".