2606432644 has 12 divisors (see below), whose sum is σ = 4636032268. Its totient is φ = 1281852000.

The previous prime is 2606432629. The next prime is 2606432651. The reversal of 2606432644 is 4462346062.

It can be written as a sum of positive squares in 2 ways, for example, as 231040000 + 2375392644 = 15200^2 + 48738^2 .

It is a super-2 number, since 2×2606432644² = 13586982255417661472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5340807 + ... + 5341294.

Almost surely, 2^2606432644 is an apocalyptic number.

It is an amenable number.

2606432644 is a deficient number, since it is larger than the sum of its proper divisors (2029599624).

2606432644 is a wasteful number, since it uses less digits than its factorization.

2606432644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10682166 (or 10682164 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

The square root of 2606432644 is about 51053.2334333488. The cubic root of 2606432644 is about 1376.2019496104.

The spelling of 2606432644 in words is "two billion, six hundred six million, four hundred thirty-two thousand, six hundred forty-four".