1820045030 has 16 divisors (see below), whose sum is σ = 3381761664. Its totient is φ = 704533440.

The previous prime is 1820045023. The next prime is 1820045033. The reversal of 1820045030 is 305400281.

It is a super-2 number, since 2×1820045030² = 6625127822455401800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1820044987 and 1820045005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820045033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2935247 + ... + 2935866.

It is an arithmetic number, because the mean of its divisors is an integer number (211360104).

Almost surely, 2^1820045030 is an apocalyptic number.

1820045030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1820045030 is a deficient number, since it is larger than the sum of its proper divisors (1561716634).

1820045030 is a wasteful number, since it uses less digits than its factorization.

1820045030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871151.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1820045030 is about 42661.9857718789. The cubic root of 1820045030 is about 1220.9392189750.

The spelling of 1820045030 in words is "one billion, eight hundred twenty million, forty-five thousand, thirty".