1790224778 has 16 divisors (see below), whose sum is σ = 2756910816. Its totient is φ = 871512720.

The previous prime is 1790224693. The next prime is 1790224819. The reversal of 1790224778 is 8774220971.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50576 + ... + 78347.

It is an arithmetic number, because the mean of its divisors is an integer number (172306926).

Almost surely, 2^1790224778 is an apocalyptic number.

1790224778 is a deficient number, since it is larger than the sum of its proper divisors (966686038).

1790224778 is a wasteful number, since it uses less digits than its factorization.

1790224778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129109.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 1790224778 is about 42311.0479425882. The cubic root of 1790224778 is about 1214.2343684692.

The spelling of 1790224778 in words is "one billion, seven hundred ninety million, two hundred twenty-four thousand, seven hundred seventy-eight".