3390782389 has 6 divisors (see below), whose sum is σ = 3578637750. Its totient is φ = 3212319816.

The previous prime is 3390782377. The next prime is 3390782393. The reversal of 3390782389 is 9832870933.

It can be written as a sum of positive squares in only one way, i.e., 1775948164 + 1614834225 = 42142^2 + 40185^2 .

It is not a de Polignac number, because 3390782389 - 2⁵ = 3390782357 is a prime.

It is a super-2 number, since 2×3390782389² = 22994810419105094642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3390782359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4696014 + ... + 4696735.

It is an arithmetic number, because the mean of its divisors is an integer number (596439625).

Almost surely, 2^3390782389 is an apocalyptic number.

It is an amenable number.

3390782389 is a deficient number, since it is larger than the sum of its proper divisors (187855361).

3390782389 is an equidigital number, since it uses as much as digits as its factorization.

3390782389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9392787 (or 9392768 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 3390782389 is about 58230.4249426363. The cubic root of 3390782389 is about 1502.3344965694.

The spelling of 3390782389 in words is "three billion, three hundred ninety million, seven hundred eighty-two thousand, three hundred eighty-nine".