72202005 has 24 divisors (see below), whose sum is σ = 125379072. Its totient is φ = 38437344.

The previous prime is 72202003. The next prime is 72202019. The reversal of 72202005 is 50020227.

It is a happy number.

It is not a de Polignac number, because 72202005 - 2¹ = 72202003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72202001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31612 + ... + 33818.

It is an arithmetic number, because the mean of its divisors is an integer number (5224128).

Almost surely, 2^72202005 is an apocalyptic number.

It is an amenable number.

72202005 is a deficient number, since it is larger than the sum of its proper divisors (53177067).

72202005 is a wasteful number, since it uses less digits than its factorization.

72202005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945 (or 2942 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 72202005 is about 8497.1762956879. The cubic root of 72202005 is about 416.4054636672.

The spelling of 72202005 in words is "seventy-two million, two hundred two thousand, five".