41220645 has 32 divisors (see below), whose sum is σ = 68567040. Its totient is φ = 21130560.

The previous prime is 41220643. The next prime is 41220653. The reversal of 41220645 is 54602214.

It is not a de Polignac number, because 41220645 - 2¹ = 41220643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41220643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41100 + ... + 42090.

It is an arithmetic number, because the mean of its divisors is an integer number (2142720).

Almost surely, 2^41220645 is an apocalyptic number.

It is an amenable number.

41220645 is a deficient number, since it is larger than the sum of its proper divisors (27346395).

41220645 is a wasteful number, since it uses less digits than its factorization.

41220645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 41220645 is about 6420.3305989645. The cubic root of 41220645 is about 345.4391802429.

Adding to 41220645 its reverse (54602214), we get a palindrome (95822859).

The spelling of 41220645 in words is "forty-one million, two hundred twenty thousand, six hundred forty-five".