202742459 has 6 divisors (see below), whose sum is σ = 215370324. Its totient is φ = 190816160.

The previous prime is 202742431. The next prime is 202742471. The reversal of 202742459 is 954247202.

It is a de Polignac number, because none of the positive numbers 2^k-202742459 is a prime.

It is a super-2 number, since 2×202742459² = 82209009362733362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202742429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 350477 + ... + 351054.

It is an arithmetic number, because the mean of its divisors is an integer number (35895054).

Almost surely, 2^202742459 is an apocalyptic number.

202742459 is a deficient number, since it is larger than the sum of its proper divisors (12627865).

202742459 is an equidigital number, since it uses as much as digits as its factorization.

202742459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701565 (or 701548 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 202742459 is about 14238.7660631109. The cubic root of 202742459 is about 587.4644218081.

The spelling of 202742459 in words is "two hundred two million, seven hundred forty-two thousand, four hundred fifty-nine".