1819854252 has 36 divisors (see below), whose sum is σ = 4601535120. Its totient is φ = 606440352.

The previous prime is 1819854221. The next prime is 1819854271. The reversal of 1819854252 is 2524589181.

1819854252 is a `hidden beast` number, since 18 + 1 + 98 + 542 + 5 + 2 = 666.

1819854252 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1819854198 and 1819854207.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187249 + ... + 196727.

It is an arithmetic number, because the mean of its divisors is an integer number (127820420).

Almost surely, 2^1819854252 is an apocalyptic number.

1819854252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1819854252 is an abundant number, since it is smaller than the sum of its proper divisors (2781680868).

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

1819854252 is a wasteful number, since it uses less digits than its factorization.

1819854252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14822 (or 14817 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 1819854252 is about 42659.7497882958. The cubic root of 1819854252 is about 1220.8965576713.

The spelling of 1819854252 in words is "one billion, eight hundred nineteen million, eight hundred fifty-four thousand, two hundred fifty-two".