2401985 has 8 divisors (see below), whose sum is σ = 2952936. Its totient is φ = 1874560.

The previous prime is 2401969. The next prime is 2401991. The reversal of 2401985 is 5891042.

It can be written as a sum of positive squares in 4 ways, for example, as 238144 + 2163841 = 488^2 + 1471^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2401985 - 2⁴ = 2401969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5654 + ... + 6063.

It is an arithmetic number, because the mean of its divisors is an integer number (369117).

2^2401985 is an apocalyptic number.

It is an amenable number.

2401985 is a deficient number, since it is larger than the sum of its proper divisors (550951).

2401985 is a wasteful number, since it uses less digits than its factorization.

2401985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11763.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2401985 is about 1549.8338620639. The cubic root of 2401985 is about 133.9234916338.

The spelling of 2401985 in words is "two million, four hundred one thousand, nine hundred eighty-five".