1821795106 has 32 divisors (see below), whose sum is σ = 2996808192. Its totient is φ = 827205120.

The previous prime is 1821795071. The next prime is 1821795113. The reversal of 1821795106 is 6015971281.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105430 + ... + 121486.

It is an arithmetic number, because the mean of its divisors is an integer number (93650256).

Almost surely, 2^1821795106 is an apocalyptic number.

1821795106 is a deficient number, since it is larger than the sum of its proper divisors (1175013086).

1821795106 is a wasteful number, since it uses less digits than its factorization.

1821795106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16194.

The product of its (nonzero) digits is 30240, while the sum is 40.

The square root of 1821795106 is about 42682.4917969886. The cubic root of 1821795106 is about 1221.3304275973.

The spelling of 1821795106 in words is "one billion, eight hundred twenty-one million, seven hundred ninety-five thousand, one hundred six".