690066402 has 8 divisors (see below), whose sum is σ = 1380132816. Its totient is φ = 230022132.

The previous prime is 690066371. The next prime is 690066407. The reversal of 690066402 is 204660096.

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

690066402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (690066407) 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, 57505528 + ... + 57505539.

It is an arithmetic number, because the mean of its divisors is an integer number (172516602).

Almost surely, 2^690066402 is an apocalyptic number.

690066402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690066402 is a wasteful number, since it uses less digits than its factorization.

690066402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115011072.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 690066402 is about 26269.1149831889. The cubic root of 690066402 is about 883.6839374657.

The spelling of 690066402 in words is "six hundred ninety million, sixty-six thousand, four hundred two".