42036870 has 32 divisors (see below), whose sum is σ = 105276672. Its totient is φ = 10722272.

The previous prime is 42036859. The next prime is 42036877. The reversal of 42036870 is 7863024.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42036877) 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 15 ways as a sum of consecutive naturals, for example, 29772 + ... + 31151.

It is an arithmetic number, because the mean of its divisors is an integer number (3289896).

Almost surely, 2^42036870 is an apocalyptic number.

42036870 is an abundant number, since it is smaller than the sum of its proper divisors (63239802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42036870 is a wasteful number, since it uses less digits than its factorization.

42036870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60956.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 42036870 is about 6483.5846566541. The cubic root of 42036870 is about 347.7043499000.

Adding to 42036870 its reverse (7863024), we get a palindrome (49899894).

The spelling of 42036870 in words is "forty-two million, thirty-six thousand, eight hundred seventy".