690540202 has 16 divisors (see below), whose sum is σ = 1137564000. Its totient is φ = 311773840.

The previous prime is 690540197. The next prime is 690540203. The reversal of 690540202 is 202045096.

It is not an unprimeable number, because it can be changed into a prime (690540203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102052 + ... + 108607.

It is an arithmetic number, because the mean of its divisors is an integer number (71097750).

Almost surely, 2^690540202 is an apocalyptic number.

690540202 is a deficient number, since it is larger than the sum of its proper divisors (447023798).

690540202 is a wasteful number, since it uses less digits than its factorization.

690540202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210821.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 690540202 is about 26278.1316306925. The cubic root of 690540202 is about 883.8861371674.

Adding to 690540202 its reverse (202045096), we get a palindrome (892585298).

The spelling of 690540202 in words is "six hundred ninety million, five hundred forty thousand, two hundred two".