1802020846 has 4 divisors (see below), whose sum is σ = 2703031272. Its totient is φ = 901010422.

The previous prime is 1802020799. The next prime is 1802020861. The reversal of 1802020846 is 6480202081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6480202081 = 61 ⋅106232821.

It is a super-3 number, since 3×1802020846³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450505210 + ... + 450505213.

It is an arithmetic number, because the mean of its divisors is an integer number (675757818).

Almost surely, 2^1802020846 is an apocalyptic number.

1802020846 is a deficient number, since it is larger than the sum of its proper divisors (901010426).

1802020846 is an equidigital number, since it uses as much as digits as its factorization.

1802020846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901010425.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 1802020846 is about 42450.2160889671. The cubic root of 1802020846 is about 1216.8954582517.

The spelling of 1802020846 in words is "one billion, eight hundred two million, twenty thousand, eight hundred forty-six".