1820250236 has 48 divisors (see below), whose sum is σ = 3910368000. Its totient is φ = 739038384.

The previous prime is 1820250203. The next prime is 1820250247. The reversal of 1820250236 is 6320520281.

It is a junction number, because it is equal to n+sod(n) for n = 1820250199 and 1820250208.

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, 8846 + ... + 60981.

It is an arithmetic number, because the mean of its divisors is an integer number (81466000).

Almost surely, 2^1820250236 is an apocalyptic number.

It is an amenable number.

1820250236 is an abundant number, since it is smaller than the sum of its proper divisors (2090117764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1820250236 is a wasteful number, since it uses less digits than its factorization.

1820250236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69871 (or 69855 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 1820250236 is about 42664.3907257563. The cubic root of 1820250236 is about 1220.9851033046.

The spelling of 1820250236 in words is "one billion, eight hundred twenty million, two hundred fifty thousand, two hundred thirty-six".