1925040 has 80 divisors (see below), whose sum is σ = 6437088. Its totient is φ = 473088.

The previous prime is 1925039. The next prime is 1925041. The reversal of 1925040 is 405291.

It is an interprime number because it is at equal distance from previous prime (1925039) and next prime (1925041).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1924998 and 1925016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2812 + ... + 3428.

2^1925040 is an apocalyptic number.

1925040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1925040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3218544).

1925040 is an abundant number, since it is smaller than the sum of its proper divisors (4512048).

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

1925040 is a wasteful number, since it uses less digits than its factorization.

1925040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1925040 is about 1387.4581074757. The cubic root of 1925040 is about 124.3979583554.

The spelling of 1925040 in words is "one million, nine hundred twenty-five thousand, forty".