3445602649 has 4 divisors (see below), whose sum is σ = 3529641780. Its totient is φ = 3361563520.

The previous prime is 3445602647. The next prime is 3445602679. The reversal of 3445602649 is 9462065443.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54287424 + 3391315225 = 7368^2 + 58235^2 .

It is a cyclic number.

It is not a de Polignac number, because 3445602649 - 2¹ = 3445602647 is a prime.

It is a super-2 number, since 2×3445602649² = 23744355229591634402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3445602647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42019504 + ... + 42019585.

It is an arithmetic number, because the mean of its divisors is an integer number (882410445).

Almost surely, 2^3445602649 is an apocalyptic number.

It is an amenable number.

3445602649 is a deficient number, since it is larger than the sum of its proper divisors (84039131).

3445602649 is an equidigital number, since it uses as much as digits as its factorization.

3445602649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84039130.

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 3445602649 is about 58699.2559492878. The cubic root of 3445602649 is about 1510.3875515040.

The spelling of 3445602649 in words is "three billion, four hundred forty-five million, six hundred two thousand, six hundred forty-nine".