1820735798 has 32 divisors (see below), whose sum is σ = 3260252160. Its totient is φ = 745636320.

The previous prime is 1820735723. The next prime is 1820735827. The reversal of 1820735798 is 8975370281.

It is a super-2 number, since 2×1820735798² = 6630157692237393608, which contains 22 as substring.

It is a congruent 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, 409628 + ... + 414048.

It is an arithmetic number, because the mean of its divisors is an integer number (101882880).

Almost surely, 2^1820735798 is an apocalyptic number.

1820735798 is a deficient number, since it is larger than the sum of its proper divisors (1439516362).

1820735798 is a wasteful number, since it uses less digits than its factorization.

1820735798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732.

The product of its (nonzero) digits is 846720, while the sum is 50.

The square root of 1820735798 is about 42670.0808295461. The cubic root of 1820735798 is about 1221.0936618695.

The spelling of 1820735798 in words is "one billion, eight hundred twenty million, seven hundred thirty-five thousand, seven hundred ninety-eight".