2780298670 has 8 divisors (see below), whose sum is σ = 5004537624. Its totient is φ = 1112119464.

The previous prime is 2780298649. The next prime is 2780298707. The reversal of 2780298670 is 768920872.

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

It is a congruent number.

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, 139014924 + ... + 139014943.

It is an arithmetic number, because the mean of its divisors is an integer number (625567203).

Almost surely, 2^2780298670 is an apocalyptic number.

2780298670 is a deficient number, since it is larger than the sum of its proper divisors (2224238954).

2780298670 is a wasteful number, since it uses less digits than its factorization.

2780298670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278029874.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 2780298670 is about 52728.5375295010. The cubic root of 2780298670 is about 1406.1462208320.

The spelling of 2780298670 in words is "two billion, seven hundred eighty million, two hundred ninety-eight thousand, six hundred seventy".