2481445 has 4 divisors (see below), whose sum is σ = 2977740. Its totient is φ = 1985152.

The previous prime is 2481433. The next prime is 2481449. The reversal of 2481445 is 5441842.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 799236 + 1682209 = 894^2 + 1297^2 .

It is a cyclic number.

It is not a de Polignac number, because 2481445 - 2⁷ = 2481317 is a prime.

2481445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2481449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248140 + ... + 248149.

It is an arithmetic number, because the mean of its divisors is an integer number (744435).

2^2481445 is an apocalyptic number.

It is an amenable number.

2481445 is a deficient number, since it is larger than the sum of its proper divisors (496295).

2481445 is an equidigital number, since it uses as much as digits as its factorization.

2481445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496294.

The product of its digits is 5120, while the sum is 28.

The square root of 2481445 is about 1575.2602959511. The cubic root of 2481445 is about 135.3842732247.

It can be divided in two parts, 2481 and 445, that added together give a triangular number (2926 = T₇₆).

The spelling of 2481445 in words is "two million, four hundred eighty-one thousand, four hundred forty-five".