1825198144 has 56 divisors (see below), whose sum is σ = 4515599808. Its totient is φ = 711114240.

The previous prime is 1825198117. The next prime is 1825198157. The reversal of 1825198144 is 4418915281.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1825198144² = 6662696529722089472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1825198144.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180259 + ... + 190114.

Almost surely, 2^1825198144 is an apocalyptic number.

1825198144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1825198144 is an abundant number, since it is smaller than the sum of its proper divisors (2690401664).

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

1825198144 is a wasteful number, since it uses less digits than its factorization.

1825198144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370403 (or 370393 counting only the distinct ones).

The product of its digits is 92160, while the sum is 43.

The square root of 1825198144 is about 42722.3377637507. The cubic root of 1825198144 is about 1222.0904195110.

The spelling of 1825198144 in words is "one billion, eight hundred twenty-five million, one hundred ninety-eight thousand, one hundred forty-four".