1840421226 has 32 divisors (see below), whose sum is σ = 4208480640. Its totient is φ = 525609216.

The previous prime is 1840421203. The next prime is 1840421267. The reversal of 1840421226 is 6221240481.

It is a super-2 number, since 2×1840421226² = 6774300578222686152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1840421193 and 1840421202.

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 15 ways as a sum of consecutive naturals, for example, 106590 + ... + 122646.

It is an arithmetic number, because the mean of its divisors is an integer number (131515020).

Almost surely, 2^1840421226 is an apocalyptic number.

1840421226 is an abundant number, since it is smaller than the sum of its proper divisors (2368059414).

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

1840421226 is a wasteful number, since it uses less digits than its factorization.

1840421226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18798.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 1840421226 is about 42900.1308389613. The cubic root of 1840421226 is about 1225.4786358964.

The spelling of 1840421226 in words is "one billion, eight hundred forty million, four hundred twenty-one thousand, two hundred twenty-six".