4049901 has 6 divisors (see below), whose sum is σ = 5849870. Its totient is φ = 2699928.

The previous prime is 4049897. The next prime is 4049921. The reversal of 4049901 is 1099404.

It can be written as a sum of positive squares in only one way, i.e., 4040100 + 9801 = 2010^2 + 99^2 .

It is not a de Polignac number, because 4049901 - 2² = 4049897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4049921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 224986 + ... + 225003.

Almost surely, 2^4049901 is an apocalyptic number.

It is an amenable number.

4049901 is a deficient number, since it is larger than the sum of its proper divisors (1799969).

4049901 is a wasteful number, since it uses less digits than its factorization.

4049901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449995 (or 449992 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 4049901 is about 2012.4365828517. The cubic root of 4049901 is about 159.3974865619.

It can be divided in two parts, 4049 and 901, that added together give a triangular number (4950 = T₉₉).

The spelling of 4049901 in words is "four million, forty-nine thousand, nine hundred one".