3857227245 has 24 divisors (see below), whose sum is σ = 6866562456. Its totient is φ = 2001587328.

The previous prime is 3857227229. The next prime is 3857227277. The reversal of 3857227245 is 5427227583.

3857227245 is a `hidden beast` number, since 3 + 8 + 572 + 2 + 72 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2491407396 + 1365819849 = 49914^2 + 36957^2 .

It is not a de Polignac number, because 3857227245 - 2⁴ = 3857227229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3857227245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1156662 + ... + 1159991.

It is an arithmetic number, because the mean of its divisors is an integer number (286106769).

Almost surely, 2^3857227245 is an apocalyptic number.

It is an amenable number.

3857227245 is a deficient number, since it is larger than the sum of its proper divisors (3009335211).

3857227245 is a wasteful number, since it uses less digits than its factorization.

3857227245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316701 (or 2316698 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 3857227245 is about 62106.5797238908. The cubic root of 3857227245 is about 1568.2853127136.

The spelling of 3857227245 in words is "three billion, eight hundred fifty-seven million, two hundred twenty-seven thousand, two hundred forty-five".