690340202 has 8 divisors (see below), whose sum is σ = 1035965700. Its totient is φ = 345018304.

The previous prime is 690340177. The next prime is 690340207. The reversal of 690340202 is 202043096.

It can be written as a sum of positive squares in 2 ways, for example, as 690060361 + 279841 = 26269^2 + 529^2 .

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

It is not an unprimeable number, because it can be changed into a prime (690340207) 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 3 ways as a sum of consecutive naturals, for example, 70127 + ... + 79362.

Almost surely, 2^690340202 is an apocalyptic number.

690340202 is a deficient number, since it is larger than the sum of its proper divisors (345625498).

690340202 is a wasteful number, since it uses less digits than its factorization.

690340202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151800.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 690340202 is about 26274.3259095262. The cubic root of 690340202 is about 883.8007961083.

Adding to 690340202 its reverse (202043096), we get a palindrome (892383298).

The spelling of 690340202 in words is "six hundred ninety million, three hundred forty thousand, two hundred two".