202018942 has 4 divisors (see below), whose sum is σ = 303028416. Its totient is φ = 101009470.

The previous prime is 202018937. The next prime is 202018951. The reversal of 202018942 is 249810202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249810202 = 2 ⋅124905101.

It is a self number, because there is not a number n which added to its sum of digits gives 202018942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50504734 + ... + 50504737.

It is an arithmetic number, because the mean of its divisors is an integer number (75757104).

Almost surely, 2^202018942 is an apocalyptic number.

202018942 is a deficient number, since it is larger than the sum of its proper divisors (101009474).

202018942 is a wasteful number, since it uses less digits than its factorization.

202018942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101009473.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 202018942 is about 14213.3367651653. The cubic root of 202018942 is about 586.7647704540.

The spelling of 202018942 in words is "two hundred two million, eighteen thousand, nine hundred forty-two".