1925730 has 24 divisors (see below), whose sum is σ = 5007132. Its totient is φ = 513504.

The previous prime is 1925719. The next prime is 1925747. The reversal of 1925730 is 375291.

1925730 is a `hidden beast` number, since 1 + 92 + 573 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1798281 + 127449 = 1341^2 + 357^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1925694 and 1925703.

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, 10609 + ... + 10788.

2^1925730 is an apocalyptic number.

1925730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1925730 is an abundant number, since it is smaller than the sum of its proper divisors (3081402).

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

1925730 is a wasteful number, since it uses less digits than its factorization.

1925730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21410 (or 21407 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1925730 is about 1387.7067413542. The cubic root of 1925730 is about 124.4128194038.

Subtracting from 1925730 its sum of digits (27), we obtain a triangular number (1925703 = T₁₉₆₂).

The spelling of 1925730 in words is "one million, nine hundred twenty-five thousand, seven hundred thirty".