502490242 has 4 divisors (see below), whose sum is σ = 753735366. Its totient is φ = 251245120.

The previous prime is 502490239. The next prime is 502490243. The reversal of 502490242 is 242094205.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 391208841 + 111281401 = 19779^2 + 10549^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 502490242.

It is not an unprimeable number, because it can be changed into a prime (502490243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125622559 + ... + 125622562.

Almost surely, 2^502490242 is an apocalyptic number.

502490242 is a deficient number, since it is larger than the sum of its proper divisors (251245124).

502490242 is a wasteful number, since it uses less digits than its factorization.

502490242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251245123.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 502490242 is about 22416.2941183417. The cubic root of 502490242 is about 795.0160153940.

It can be divided in two parts, 5024 and 90242, that added together give a triangular number (95266 = T₄₃₆).

The spelling of 502490242 in words is "five hundred two million, four hundred ninety thousand, two hundred forty-two".