2378640286 has 16 divisors (see below), whose sum is σ = 4097180160. Its totient is φ = 1024294680.

The previous prime is 2378640263. The next prime is 2378640293. The reversal of 2378640286 is 6820468732.

It is a super-2 number, since 2×2378640286² = 11315859220364323592, which contains 22 as substring.

It is a congruent number.

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, 2844846 + ... + 2845681.

It is an arithmetic number, because the mean of its divisors is an integer number (256073760).

Almost surely, 2^2378640286 is an apocalyptic number.

2378640286 is a deficient number, since it is larger than the sum of its proper divisors (1718539874).

2378640286 is a wasteful number, since it uses less digits than its factorization.

2378640286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690559.

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 2378640286 is about 48771.3059698015. The cubic root of 2378640286 is about 1334.8821427094.

The spelling of 2378640286 in words is "two billion, three hundred seventy-eight million, six hundred forty thousand, two hundred eighty-six".