2897145238 has 16 divisors (see below), whose sum is σ = 4830973056. Its totient is φ = 1294009920.

The previous prime is 2897145217. The next prime is 2897145247. The reversal of 2897145238 is 8325417982.

It is a junction number, because it is equal to n+sod(n) for n = 2897145191 and 2897145200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1796431 + ... + 1798042.

It is an arithmetic number, because the mean of its divisors is an integer number (301935816).

Almost surely, 2^2897145238 is an apocalyptic number.

2897145238 is a deficient number, since it is larger than the sum of its proper divisors (1933827818).

2897145238 is a wasteful number, since it uses less digits than its factorization.

2897145238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3594519.

The product of its digits is 967680, while the sum is 49.

The square root of 2897145238 is about 53825.1357453003. The cubic root of 2897145238 is about 1425.5750608948.

The spelling of 2897145238 in words is "two billion, eight hundred ninety-seven million, one hundred forty-five thousand, two hundred thirty-eight".