690666462 has 12 divisors (see below), whose sum is σ = 1496444040. Its totient is φ = 230222148.

The previous prime is 690666419. The next prime is 690666467. The reversal of 690666462 is 264666096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690666467) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19185162 + ... + 19185197.

It is an arithmetic number, because the mean of its divisors is an integer number (124703670).

Almost surely, 2^690666462 is an apocalyptic number.

690666462 is an abundant number, since it is smaller than the sum of its proper divisors (805777578).

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

690666462 is a wasteful number, since it uses less digits than its factorization.

690666462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38370367 (or 38370364 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The square root of 690666462 is about 26280.5338986863. The cubic root of 690666462 is about 883.9400044935.

The spelling of 690666462 in words is "six hundred ninety million, six hundred sixty-six thousand, four hundred sixty-two".