3440433021 has 16 divisors (see below), whose sum is σ = 4864567104. Its totient is φ = 2155376384.

The previous prime is 3440433011. The next prime is 3440433023. The reversal of 3440433021 is 1203340443.

It is a cyclic number.

It is not a de Polignac number, because 3440433021 - 2¹⁵ = 3440400253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3440432982 and 3440433000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440433023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18351 + ... + 84956.

It is an arithmetic number, because the mean of its divisors is an integer number (304035444).

Almost surely, 2^3440433021 is an apocalyptic number.

It is an amenable number.

3440433021 is a deficient number, since it is larger than the sum of its proper divisors (1424134083).

3440433021 is a wasteful number, since it uses less digits than its factorization.

3440433021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103980.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 3440433021 is about 58655.2045516849. The cubic root of 3440433021 is about 1509.6318007858.

Adding to 3440433021 its reverse (1203340443), we get a palindrome (4643773464).

The spelling of 3440433021 in words is "three billion, four hundred forty million, four hundred thirty-three thousand, twenty-one".