1941556240 has 80 divisors (see below), whose sum is σ = 4898811456. Its totient is φ = 711360000.

The previous prime is 1941556207. The next prime is 1941556289. The reversal of 1941556240 is 426551491.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1941556240.

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, 129115 + ... + 143365.

Almost surely, 2^1941556240 is an apocalyptic number.

1941556240 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 1941556240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2449405728).

1941556240 is an abundant number, since it is smaller than the sum of its proper divisors (2957255216).

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

1941556240 is a wasteful number, since it uses less digits than its factorization.

1941556240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14408 (or 14402 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 1941556240 is about 44063.0938541542. The cubic root of 1941556240 is about 1247.5271089406.

The spelling of 1941556240 in words is "one billion, nine hundred forty-one million, five hundred fifty-six thousand, two hundred forty".