2640378210 has 32 divisors (see below), whose sum is σ = 6431493312. Its totient is φ = 693591360.

The previous prime is 2640378131. The next prime is 2640378233. The reversal of 2640378210 is 128730462.

2640378210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654801 + ... + 658820.

It is an arithmetic number, because the mean of its divisors is an integer number (200984166).

Almost surely, 2^2640378210 is an apocalyptic number.

2640378210 is an abundant number, since it is smaller than the sum of its proper divisors (3791115102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2640378210 is a wasteful number, since it uses less digits than its factorization.

2640378210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313698.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2640378210 is about 51384.6106339242. The cubic root of 2640378210 is about 1382.1506426278.

The spelling of 2640378210 in words is "two billion, six hundred forty million, three hundred seventy-eight thousand, two hundred ten".