669264024 has 128 divisors (see below), whose sum is σ = 2081479680. Its totient is φ = 176179200.

The previous prime is 669264017. The next prime is 669264049. The reversal of 669264024 is 420462966.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 52609 + ... + 64079.

It is an arithmetic number, because the mean of its divisors is an integer number (16261560).

Almost surely, 2^669264024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669264024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1040739840).

669264024 is an abundant number, since it is smaller than the sum of its proper divisors (1412215656).

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

669264024 is a wasteful number, since it uses less digits than its factorization.

669264024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11521 (or 11517 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 669264024 is about 25870.1376880758. The cubic root of 669264024 is about 874.7134948789.

The spelling of 669264024 in words is "six hundred sixty-nine million, two hundred sixty-four thousand, twenty-four".