42370645 has 8 divisors (see below), whose sum is σ = 52485120. Its totient is φ = 32802960.

The previous prime is 42370639. The next prime is 42370649. The reversal of 42370645 is 54607324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42370645 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42370649) 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, 136525 + ... + 136834.

It is an arithmetic number, because the mean of its divisors is an integer number (6560640).

Almost surely, 2^42370645 is an apocalyptic number.

It is an amenable number.

42370645 is a deficient number, since it is larger than the sum of its proper divisors (10114475).

42370645 is a wasteful number, since it uses less digits than its factorization.

42370645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273395.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 42370645 is about 6509.2737690160. The cubic root of 42370645 is about 348.6221886620.

Adding to 42370645 its reverse (54607324), we get a palindrome (96977969).

The spelling of 42370645 in words is "forty-two million, three hundred seventy thousand, six hundred forty-five".