1941741990 has 64 divisors (see below), whose sum is σ = 5193861120. Its totient is φ = 516209760.

The previous prime is 1941741983. The next prime is 1941742003. The reversal of 1941741990 is 991471491.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78507 + ... + 100233.

It is an arithmetic number, because the mean of its divisors is an integer number (81154080).

Almost surely, 2^1941741990 is an apocalyptic number.

1941741990 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 1941741990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2596930560).

1941741990 is an abundant number, since it is smaller than the sum of its proper divisors (3252119130).

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

1941741990 is a wasteful number, since it uses less digits than its factorization.

1941741990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22074 (or 22068 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 1941741990 is about 44065.2015767544. The cubic root of 1941741990 is about 1247.5668915930.

The spelling of 1941741990 in words is "one billion, nine hundred forty-one million, seven hundred forty-one thousand, nine hundred ninety".