2420545 has 8 divisors (see below), whose sum is σ = 3075624. Its totient is φ = 1822464.

The previous prime is 2420531. The next prime is 2420549. The reversal of 2420545 is 5450242.

2420545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 440896 + 1979649 = 664^2 + 1407^2 .

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 2420545 - 2⁷ = 2420417 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (2420549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14154 + ... + 14323.

It is an arithmetic number, because the mean of its divisors is an integer number (384453).

2^2420545 is an apocalyptic number.

It is an amenable number.

2420545 is a deficient number, since it is larger than the sum of its proper divisors (655079).

2420545 is a wasteful number, since it uses less digits than its factorization.

2420545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28499.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 2420545 is about 1555.8100783836. The cubic root of 2420545 is about 134.2675466918.

Adding to 2420545 its reverse (5450242), we get a palindrome (7870787).

The spelling of 2420545 in words is "two million, four hundred twenty thousand, five hundred forty-five".