690223402 has 16 divisors (see below), whose sum is σ = 1140016032. Its totient is φ = 310804720.

The previous prime is 690223381. The next prime is 690223423. The reversal of 690223402 is 204322096.

690223402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (690223381) and next prime (690223423).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144253 + ... + 148960.

It is an arithmetic number, because the mean of its divisors is an integer number (71251002).

Almost surely, 2^690223402 is an apocalyptic number.

690223402 is a deficient number, since it is larger than the sum of its proper divisors (449792630).

690223402 is a wasteful number, since it uses less digits than its factorization.

690223402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293333.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 690223402 is about 26272.1031133786. The cubic root of 690223402 is about 883.7509493057.

Adding to 690223402 its reverse (204322096), we get a palindrome (894545498).

The spelling of 690223402 in words is "six hundred ninety million, two hundred twenty-three thousand, four hundred two".