244401661 has 12 divisors (see below), whose sum is σ = 286015968. Its totient is φ = 208225752.

The previous prime is 244401649. The next prime is 244401679. The reversal of 244401661 is 166104442.

It is not a de Polignac number, because 244401661 - 2⁹ = 244401149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244401691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6751 + ... + 23116.

It is an arithmetic number, because the mean of its divisors is an integer number (23834664).

Almost surely, 2^244401661 is an apocalyptic number.

It is an amenable number.

244401661 is a deficient number, since it is larger than the sum of its proper divisors (41614307).

244401661 is a wasteful number, since it uses less digits than its factorization.

244401661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30048 (or 30041 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 244401661 is about 15633.3509203881. The cubic root of 244401661 is about 625.2226713785. Note that the first 3 decimals are identical.

The spelling of 244401661 in words is "two hundred forty-four million, four hundred one thousand, six hundred sixty-one".