202665042 has 24 divisors (see below), whose sum is σ = 453273600. Its totient is φ = 65375640.

The previous prime is 202665037. The next prime is 202665049. The reversal of 202665042 is 240566202.

202665042 is a `hidden beast` number, since 2 + 0 + 2 + 6 + 650 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 202664997 and 202665015.

It is not an unprimeable number, because it can be changed into a prime (202665049) 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 11 ways as a sum of consecutive naturals, for example, 181042 + ... + 182157.

It is an arithmetic number, because the mean of its divisors is an integer number (18886400).

Almost surely, 2^202665042 is an apocalyptic number.

202665042 is an abundant number, since it is smaller than the sum of its proper divisors (250608558).

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

202665042 is a wasteful number, since it uses less digits than its factorization.

202665042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363238 (or 363235 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 202665042 is about 14236.0472744368. The cubic root of 202665042 is about 587.3896380596.

The spelling of 202665042 in words is "two hundred two million, six hundred sixty-five thousand, forty-two".