202228939 has 8 divisors (see below), whose sum is σ = 226576368. Its totient is φ = 178875360.

The previous prime is 202228883. The next prime is 202228963. The reversal of 202228939 is 939822202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202228939 - 2¹³ = 202220747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202228898 and 202228907.

It is not an unprimeable number, because it can be changed into a prime (202228139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248032 + ... + 248845.

It is an arithmetic number, because the mean of its divisors is an integer number (28322046).

Almost surely, 2^202228939 is an apocalyptic number.

202228939 is a deficient number, since it is larger than the sum of its proper divisors (24347429).

202228939 is a wasteful number, since it uses less digits than its factorization.

202228939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496925.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 202228939 is about 14220.7221687227. The cubic root of 202228939 is about 586.9680124041.

It can be divided in two parts, 20222 and 8939, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 202228939 in words is "two hundred two million, two hundred twenty-eight thousand, nine hundred thirty-nine".