1940725 has 12 divisors (see below), whose sum is σ = 2427300. Its totient is φ = 1539200.

The previous prime is 1940713. The next prime is 1940747. The reversal of 1940725 is 5270491.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 398161 + 1542564 = 631^2 + 1242^2 .

It is not a de Polignac number, because 1940725 - 2⁷ = 1940597 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1940693 and 1940702.

It is a congruent number.

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, 3465 + ... + 3985.

It is an arithmetic number, because the mean of its divisors is an integer number (202275).

2^1940725 is an apocalyptic number.

1940725 is the 745-th nonagonal number.

It is an amenable number.

1940725 is a deficient number, since it is larger than the sum of its proper divisors (486575).

1940725 is a wasteful number, since it uses less digits than its factorization.

1940725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1940725 is about 1393.0990632399. The cubic root of 1940725 is about 124.7349048606.

The spelling of 1940725 in words is "one million, nine hundred forty thousand, seven hundred twenty-five".