1825412780 has 24 divisors (see below), whose sum is σ = 3922516752. Its totient is φ = 713184192.

The previous prime is 1825412777. The next prime is 1825412839. The reversal of 1825412780 is 872145281.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060427 + ... + 1062146.

It is an arithmetic number, because the mean of its divisors is an integer number (163438198).

Almost surely, 2^1825412780 is an apocalyptic number.

1825412780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1825412780 is an abundant number, since it is smaller than the sum of its proper divisors (2097103972).

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

1825412780 is a wasteful number, since it uses less digits than its factorization.

1825412780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122625 (or 2122623 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 1825412780 is about 42724.8496779099. The cubic root of 1825412780 is about 1222.1383219481.

The spelling of 1825412780 in words is "one billion, eight hundred twenty-five million, four hundred twelve thousand, seven hundred eighty".