1841340090 has 32 divisors (see below), whose sum is σ = 4462978176. Its totient is φ = 486161600.

The previous prime is 1841340073. The next prime is 1841340097. The reversal of 1841340090 is 900431481.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1841340097) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 300822 + ... + 306881.

It is an arithmetic number, because the mean of its divisors is an integer number (139468068).

Almost surely, 2^1841340090 is an apocalyptic number.

1841340090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1841340090 is an abundant number, since it is smaller than the sum of its proper divisors (2621638086).

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

1841340090 is a wasteful number, since it uses less digits than its factorization.

1841340090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607814.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1841340090 is about 42910.8388405540. The cubic root of 1841340090 is about 1225.6825495145.

The spelling of 1841340090 in words is "one billion, eight hundred forty-one million, three hundred forty thousand, ninety".