2602253638 has 4 divisors (see below), whose sum is σ = 3903380460. Its totient is φ = 1301126818.

The previous prime is 2602253627. The next prime is 2602253639. The reversal of 2602253638 is 8363522062.

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

It is a junction number, because it is equal to n+sod(n) for n = 2602253597 and 2602253606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2602253639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650563408 + ... + 650563411.

It is an arithmetic number, because the mean of its divisors is an integer number (975845115).

Almost surely, 2^2602253638 is an apocalyptic number.

2602253638 is a deficient number, since it is larger than the sum of its proper divisors (1301126822).

2602253638 is a wasteful number, since it uses less digits than its factorization.

2602253638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301126821.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2602253638 is about 51012.2890880227. The cubic root of 2602253638 is about 1375.4660481666.

The spelling of 2602253638 in words is "two billion, six hundred two million, two hundred fifty-three thousand, six hundred thirty-eight".