4434094921 has 9 divisors (see below), whose sum is σ = 4711469749. Its totient is φ = 4172200384.

The previous prime is 4434094919. The next prime is 4434094927. The reversal of 4434094921 is 1294904344.

The square root of 4434094921 is 66589.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1537502521 + 2896592400 = 39211^2 + 53820^2 .

It is not a de Polignac number, because 4434094921 - 2¹ = 4434094919 is a prime.

It is a super-2 number, since 2×4434094921² = 39322395536875992482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4434094927) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1130055 + ... + 1133971.

Almost surely, 2^4434094921 is an apocalyptic number.

4434094921 is the 66589-th square number.

4434094921 is the 33295-th centered octagonal number.

It is an amenable number.

4434094921 is a deficient number, since it is larger than the sum of its proper divisors (277374828).

4434094921 is an frugal number, since it uses more digits than its factorization.

4434094921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7868 (or 3934 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The cubic root of 4434094921 is about 1642.8641850101.

The spelling of 4434094921 in words is "four billion, four hundred thirty-four million, ninety-four thousand, nine hundred twenty-one".