1841396940 has 72 divisors (see below), whose sum is σ = 5625831120. Its totient is φ = 487499904.

The previous prime is 1841396929. The next prime is 1841396959. The reversal of 1841396940 is 496931481.

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

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 23 ways as a sum of consecutive naturals, for example, 11779 + ... + 61818.

Almost surely, 2^1841396940 is an apocalyptic number.

1841396940 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 1841396940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2812915560).

1841396940 is an abundant number, since it is smaller than the sum of its proper divisors (3784434180).

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

1841396940 is a wasteful number, since it uses less digits than its factorization.

1841396940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73751 (or 73746 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1841396940 is about 42911.5012554909. The cubic root of 1841396940 is about 1225.6951633958.

It can be divided in two parts, 184 and 1396940, that added together give a square (1397124 = 1182²).

The spelling of 1841396940 in words is "one billion, eight hundred forty-one million, three hundred ninety-six thousand, nine hundred forty".