4234252821 has 8 divisors (see below), whose sum is σ = 5669293440. Its totient is φ = 2811023712.

The previous prime is 4234252817. The next prime is 4234252829. The reversal of 4234252821 is 1282524324.

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

It is not a de Polignac number, because 4234252821 - 2² = 4234252817 is a prime.

It is a super-3 number, since 3×4234252821³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4234252829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2952040 + ... + 2953473.

It is an arithmetic number, because the mean of its divisors is an integer number (708661680).

Almost surely, 2^4234252821 is an apocalyptic number.

It is an amenable number.

4234252821 is a deficient number, since it is larger than the sum of its proper divisors (1435040619).

4234252821 is a wasteful number, since it uses less digits than its factorization.

4234252821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5905755.

The product of its digits is 30720, while the sum is 33.

The square root of 4234252821 is about 65071.1366198563. The cubic root of 4234252821 is about 1617.8028463692.

The spelling of 4234252821 in words is "four billion, two hundred thirty-four million, two hundred fifty-two thousand, eight hundred twenty-one".