1825209474 has 32 divisors (see below), whose sum is σ = 3983791680. Its totient is φ = 552883200.

The previous prime is 1825209457. The next prime is 1825209499. The reversal of 1825209474 is 4749025281.

It is a Curzon 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, 327834 + ... + 333354.

It is an arithmetic number, because the mean of its divisors is an integer number (124493490).

Almost surely, 2^1825209474 is an apocalyptic number.

1825209474 is an abundant number, since it is smaller than the sum of its proper divisors (2158582206).

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

1825209474 is a wasteful number, since it uses less digits than its factorization.

1825209474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10546.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1825209474 is about 42722.4703639665. The cubic root of 1825209474 is about 1222.0929482329.

The spelling of 1825209474 in words is "one billion, eight hundred twenty-five million, two hundred nine thousand, four hundred seventy-four".