202278045 has 16 divisors (see below), whose sum is σ = 334805760. Its totient is φ = 104161344.

The previous prime is 202278029. The next prime is 202278049. The reversal of 202278045 is 540872202.

It is not a de Polignac number, because 202278045 - 2⁴ = 202278029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202278049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232069 + ... + 232938.

It is an arithmetic number, because the mean of its divisors is an integer number (20925360).

Almost surely, 2^202278045 is an apocalyptic number.

It is an amenable number.

202278045 is a deficient number, since it is larger than the sum of its proper divisors (132527715).

202278045 is a wasteful number, since it uses less digits than its factorization.

202278045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465044.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 202278045 is about 14222.4486288403. The cubic root of 202278045 is about 587.0155184940.

The spelling of 202278045 in words is "two hundred two million, two hundred seventy-eight thousand, forty-five".