42373815 has 32 divisors (see below), whose sum is σ = 75085056. Its totient is φ = 20232960.

The previous prime is 42373811. The next prime is 42373841. The reversal of 42373815 is 51837324.

42373815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42373815 - 2² = 42373811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42373811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9139 + ... + 12971.

It is an arithmetic number, because the mean of its divisors is an integer number (2346408).

Almost surely, 2^42373815 is an apocalyptic number.

42373815 is a deficient number, since it is larger than the sum of its proper divisors (32711241).

42373815 is a wasteful number, since it uses less digits than its factorization.

42373815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919.

The product of its digits is 20160, while the sum is 33.

The square root of 42373815 is about 6509.5172632078. The cubic root of 42373815 is about 348.6308826118.

The spelling of 42373815 in words is "forty-two million, three hundred seventy-three thousand, eight hundred fifteen".