690562944 has 192 divisors, whose sum is σ = 2091473280. Its totient is φ = 218419200.

The previous prime is 690562921. The next prime is 690562949. The reversal of 690562944 is 449265096.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 690562944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690562949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2178274 + ... + 2178590.

It is an arithmetic number, because the mean of its divisors is an integer number (10893090).

Almost surely, 2^690562944 is an apocalyptic number.

690562944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690562944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045736640).

690562944 is an abundant number, since it is smaller than the sum of its proper divisors (1400910336).

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

690562944 is a wasteful number, since it uses less digits than its factorization.

690562944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 414 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 690562944 is about 26278.5643443473. The cubic root of 690562944 is about 883.8958402558.

The spelling of 690562944 in words is "six hundred ninety million, five hundred sixty-two thousand, nine hundred forty-four".