202742742 has 8 divisors (see below), whose sum is σ = 405485496. Its totient is φ = 67580912.

The previous prime is 202742699. The next prime is 202742773. The reversal of 202742742 is 247247202.

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

202742742 is an admirable number.

It is a super-2 number, since 2×202742742² = 82209238867357128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16895223 + ... + 16895234.

It is an arithmetic number, because the mean of its divisors is an integer number (50685687).

Almost surely, 2^202742742 is an apocalyptic number.

202742742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

202742742 is a wasteful number, since it uses less digits than its factorization.

202742742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33790462.

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 202742742 is about 14238.7760007664. The cubic root of 202742742 is about 587.4646951472.

Adding to 202742742 its reverse (247247202), we get a palindrome (449989944).

The spelling of 202742742 in words is "two hundred two million, seven hundred forty-two thousand, seven hundred forty-two".