1940620680 has 160 divisors (see below), whose sum is σ = 6547242240. Its totient is φ = 515548800.

The previous prime is 1940620679. The next prime is 1940620681. The reversal of 1940620680 is 860260491.

It is an interprime number because it is at equal distance from previous prime (1940620679) and next prime (1940620681).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1940620681) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 993705 + ... + 995655.

It is an arithmetic number, because the mean of its divisors is an integer number (40920264).

Almost surely, 2^1940620680 is an apocalyptic number.

1940620680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940620680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3273621120).

1940620680 is an abundant number, since it is smaller than the sum of its proper divisors (4606621560).

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

1940620680 is a wasteful number, since it uses less digits than its factorization.

1940620680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1940620680 is about 44052.4764343618. The cubic root of 1940620680 is about 1247.3266985766.

The spelling of 1940620680 in words is "one billion, nine hundred forty million, six hundred twenty thousand, six hundred eighty".