2840386145 has 8 divisors (see below), whose sum is σ = 3451608960. Its totient is φ = 2243545200.

The previous prime is 2840386117. The next prime is 2840386177. The reversal of 2840386145 is 5416830482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2840386145 is a prime.

It is a super-2 number, since 2×2840386145² = 16135586905415922050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3595031 + ... + 3595820.

It is an arithmetic number, because the mean of its divisors is an integer number (431451120).

Almost surely, 2^2840386145 is an apocalyptic number.

It is an amenable number.

2840386145 is a deficient number, since it is larger than the sum of its proper divisors (611222815).

2840386145 is an equidigital number, since it uses as much as digits as its factorization.

2840386145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7190935.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 2840386145 is about 53295.2731956597. The cubic root of 2840386145 is about 1416.2039298534.

The spelling of 2840386145 in words is "two billion, eight hundred forty million, three hundred eighty-six thousand, one hundred forty-five".