4252066640 has 160 divisors (see below), whose sum is σ = 10585036800. Its totient is φ = 1585612800.

The previous prime is 4252066633. The next prime is 4252066667. The reversal of 4252066640 is 466602524.

It is a super-2 number, since 2×4252066640² = 36160141422001779200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4252066640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13672085 + ... + 13672395.

It is an arithmetic number, because the mean of its divisors is an integer number (66156480).

Almost surely, 2^4252066640 is an apocalyptic number.

4252066640 is a gapful number since it is divisible by the number (40) 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 4252066640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5292518400).

4252066640 is an abundant number, since it is smaller than the sum of its proper divisors (6332970160).

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

4252066640 is a wasteful number, since it uses less digits than its factorization.

4252066640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 4252066640 is about 65207.8725308532. The cubic root of 4252066640 is about 1620.0684114787.

The spelling of 4252066640 in words is "four billion, two hundred fifty-two million, sixty-six thousand, six hundred forty".