2690786220 has 24 divisors (see below), whose sum is σ = 7534201584. Its totient is φ = 717542976.

The previous prime is 2690786201. The next prime is 2690786221. The reversal of 2690786220 is 226870962.

It is not an unprimeable number, because it can be changed into a prime (2690786221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22423159 + ... + 22423278.

It is an arithmetic number, because the mean of its divisors is an integer number (313925066).

Almost surely, 2^2690786220 is an apocalyptic number.

2690786220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2690786220 is an abundant number, since it is smaller than the sum of its proper divisors (4843415364).

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

2690786220 is a wasteful number, since it uses less digits than its factorization.

2690786220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44846449 (or 44846447 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2690786220 is about 51872.7888203439. The cubic root of 2690786220 is about 1390.8908975675.

The spelling of 2690786220 in words is "two billion, six hundred ninety million, seven hundred eighty-six thousand, two hundred twenty".