2890856464 has 20 divisors (see below), whose sum is σ = 5601919356. Its totient is φ = 1445199872.

The previous prime is 2890856447. The next prime is 2890856473. The reversal of 2890856464 is 4646580982.

It can be written as a sum of positive squares in 2 ways, for example, as 1370480400 + 1520376064 = 37020^2 + 38992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142032 + ... + 161104.

Almost surely, 2^2890856464 is an apocalyptic number.

It is an amenable number.

2890856464 is a deficient number, since it is larger than the sum of its proper divisors (2711062892).

2890856464 is a wasteful number, since it uses less digits than its factorization.

2890856464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28554 (or 28548 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 52.

The square root of 2890856464 is about 53766.6854474032. The cubic root of 2890856464 is about 1424.5428247594.

The spelling of 2890856464 in words is "two billion, eight hundred ninety million, eight hundred fifty-six thousand, four hundred sixty-four".