1941866730 has 64 divisors (see below), whose sum is σ = 5192686080. Its totient is φ = 516393792.

The previous prime is 1941866683. The next prime is 1941866737. The reversal of 1941866730 is 376681491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1941866737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89292 + ... + 108888.

It is an arithmetic number, because the mean of its divisors is an integer number (81135720).

Almost surely, 2^1941866730 is an apocalyptic number.

1941866730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1941866730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596343040).

1941866730 is an abundant number, since it is smaller than the sum of its proper divisors (3250819350).

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

1941866730 is a wasteful number, since it uses less digits than its factorization.

1941866730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19980 (or 19974 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1941866730 is about 44066.6169566033. The cubic root of 1941866730 is about 1247.5936061209.

The spelling of 1941866730 in words is "one billion, nine hundred forty-one million, eight hundred sixty-six thousand, seven hundred thirty".