4400061 has 16 divisors (see below), whose sum is σ = 6268416. Its totient is φ = 2738736.

The previous prime is 4400041. The next prime is 4400069. The reversal of 4400061 is 1600044.

4400061 is a nontrivial binomial coefficient, being equal to C(2967, 2).

It is not a de Polignac number, because 4400061 - 2⁷ = 4399933 is a prime.

It is a Curzon number.

4400061 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4400061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2226 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (391776).

Almost surely, 2^4400061 is an apocalyptic number.

4400061 is the 2966-th triangular number.

It is an amenable number.

4400061 is a deficient number, since it is larger than the sum of its proper divisors (1868355).

4400061 is a wasteful number, since it uses less digits than its factorization.

4400061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 4400061 is about 2097.6322365944. The cubic root of 4400061 is about 163.8650113681.

It can be divided in two parts, 4 and 400061, that added together give a triangular number (400065 = T₈₉₄).

The spelling of 4400061 in words is "four million, four hundred thousand, sixty-one".