1925800436 has 12 divisors (see below), whose sum is σ = 3851600928. Its totient is φ = 825343032.

The previous prime is 1925800427. The next prime is 1925800447. The reversal of 1925800436 is 6340085291.

It is a happy number.

1925800436 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1925800436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34389266 + ... + 34389321.

It is an arithmetic number, because the mean of its divisors is an integer number (320966744).

Almost surely, 2^1925800436 is an apocalyptic number.

It is an amenable number.

1925800436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1925800436 is a wasteful number, since it uses less digits than its factorization.

1925800436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68778598 (or 68778596 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1925800436 is about 43883.9428037181. The cubic root of 1925800436 is about 1244.1433623718.

The spelling of 1925800436 in words is "one billion, nine hundred twenty-five million, eight hundred thousand, four hundred thirty-six".