42363865 has 16 divisors (see below), whose sum is σ = 52390800. Its totient is φ = 32865280.

The previous prime is 42363859. The next prime is 42363869. The reversal of 42363865 is 56836324.

It can be written as a sum of positive squares in 8 ways, for example, as 1774224 + 40589641 = 1332^2 + 6371^2 .

It is not a de Polignac number, because 42363865 - 2³ = 42363857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42363869) 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, 39861 + ... + 40909.

It is an arithmetic number, because the mean of its divisors is an integer number (3274425).

Almost surely, 2^42363865 is an apocalyptic number.

It is an amenable number.

42363865 is a deficient number, since it is larger than the sum of its proper divisors (10026935).

42363865 is a wasteful number, since it uses less digits than its factorization.

42363865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its digits is 103680, while the sum is 37.

The square root of 42363865 is about 6508.7529527552. The cubic root of 42363865 is about 348.6035925756.

The spelling of 42363865 in words is "forty-two million, three hundred sixty-three thousand, eight hundred sixty-five".