2804221157 has 16 divisors (see below), whose sum is σ = 3102200832. Its totient is φ = 2525592960.

The previous prime is 2804221139. The next prime is 2804221169. The reversal of 2804221157 is 7511224082.

It is a cyclic number.

It is not a de Polignac number, because 2804221157 - 2⁶ = 2804221093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2804221127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26768 + ... + 79529.

It is an arithmetic number, because the mean of its divisors is an integer number (193887552).

Almost surely, 2^2804221157 is an apocalyptic number.

It is an amenable number.

2804221157 is a deficient number, since it is larger than the sum of its proper divisors (297979675).

2804221157 is a wasteful number, since it uses less digits than its factorization.

2804221157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106388.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 2804221157 is about 52954.8973844724. The cubic root of 2804221157 is about 1410.1676706530.

The spelling of 2804221157 in words is "two billion, eight hundred four million, two hundred twenty-one thousand, one hundred fifty-seven".