42880845 has 16 divisors (see below), whose sum is σ = 78410880. Its totient is φ = 19602624.

The previous prime is 42880841. The next prime is 42880861. The reversal of 42880845 is 54808824.

It is not a de Polignac number, because 42880845 - 2² = 42880841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42880841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204090 + ... + 204299.

It is an arithmetic number, because the mean of its divisors is an integer number (4900680).

Almost surely, 2^42880845 is an apocalyptic number.

It is an amenable number.

42880845 is a deficient number, since it is larger than the sum of its proper divisors (35530035).

42880845 is a wasteful number, since it uses less digits than its factorization.

42880845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408404.

The product of its (nonzero) digits is 81920, while the sum is 39.

The square root of 42880845 is about 6548.3467379179. The cubic root of 42880845 is about 350.0159040392.

The spelling of 42880845 in words is "forty-two million, eight hundred eighty thousand, eight hundred forty-five".