42902178 has 32 divisors (see below), whose sum is σ = 94528512. Its totient is φ = 12872400.

The previous prime is 42902159. The next prime is 42902179. The reversal of 42902178 is 87120924.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (42902179) 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, 3643 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (2954016).

Almost surely, 2^42902178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42902178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47264256).

42902178 is an abundant number, since it is smaller than the sum of its proper divisors (51626334).

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

42902178 is a wasteful number, since it uses less digits than its factorization.

42902178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 42902178 is about 6549.9754198012. The cubic root of 42902178 is about 350.0739381208.

The spelling of 42902178 in words is "forty-two million, nine hundred two thousand, one hundred seventy-eight".