2481645 has 8 divisors (see below), whose sum is σ = 3970656. Its totient is φ = 1323536.

The previous prime is 2481641. The next prime is 2481649. The reversal of 2481645 is 5461842.

It is an interprime number because it is at equal distance from previous prime (2481641) and next prime (2481649).

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

It is a cyclic number.

It is not a de Polignac number, because 2481645 - 2² = 2481641 is a prime.

It is a super-3 number, since 3×2481645³ = 45850093083832233375, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2481641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82707 + ... + 82736.

It is an arithmetic number, because the mean of its divisors is an integer number (496332).

2^2481645 is an apocalyptic number.

It is an amenable number.

2481645 is a deficient number, since it is larger than the sum of its proper divisors (1489011).

2481645 is a wasteful number, since it uses less digits than its factorization.

2481645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165451.

The product of its digits is 7680, while the sum is 30.

The square root of 2481645 is about 1575.3237762441. The cubic root of 2481645 is about 135.3879103699.

The spelling of 2481645 in words is "two million, four hundred eighty-one thousand, six hundred forty-five".