42278002 has 48 divisors (see below), whose sum is σ = 76265280. Its totient is φ = 17392320.

The previous prime is 42277993. The next prime is 42278003. The reversal of 42278002 is 20087224.

It is a super-2 number, since 2×42278002² = 3574858906224008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42278003) 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 23 ways as a sum of consecutive naturals, for example, 693052 + ... + 693112.

It is an arithmetic number, because the mean of its divisors is an integer number (1588860).

Almost surely, 2^42278002 is an apocalyptic number.

42278002 is a deficient number, since it is larger than the sum of its proper divisors (33987278).

42278002 is a wasteful number, since it uses less digits than its factorization.

42278002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 42278002 is about 6502.1536432170. The cubic root of 42278002 is about 348.3679169182.

The spelling of 42278002 in words is "forty-two million, two hundred seventy-eight thousand, two".