2024781 has 8 divisors (see below), whose sum is σ = 2945184. Its totient is φ = 1227120.

The previous prime is 2024779. The next prime is 2024831. The reversal of 2024781 is 1874202.

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

It is not a de Polignac number, because 2024781 - 2¹ = 2024779 is a prime.

It is a super-2 number, since 2×2024781² = 8199476195922, which contains 22 as substring.

2024781 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2024731) 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 7 ways as a sum of consecutive naturals, for example, 30646 + ... + 30711.

It is an arithmetic number, because the mean of its divisors is an integer number (368148).

2^2024781 is an apocalyptic number.

It is an amenable number.

2024781 is a deficient number, since it is larger than the sum of its proper divisors (920403).

2024781 is a wasteful number, since it uses less digits than its factorization.

2024781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61371.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2024781 is about 1422.9479962388. The cubic root of 2024781 is about 126.5103388468.

Adding to 2024781 its reverse (1874202), we get a palindrome (3898983).

The spelling of 2024781 in words is "two million, twenty-four thousand, seven hundred eighty-one".