1940625 has 48 divisors (see below), whose sum is σ = 3749760. Its totient is φ = 990000.

The previous prime is 1940621. The next prime is 1940639. The reversal of 1940625 is 5260491.

It is not a de Polignac number, because 1940625 - 2² = 1940621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (1940621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84364 + ... + 84386.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2^1940625 is an apocalyptic number.

1940625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1940625 is a deficient number, since it is larger than the sum of its proper divisors (1809135).

1940625 is an frugal number, since it uses more digits than its factorization.

1940625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1940625 is about 1393.0631715755. The cubic root of 1940625 is about 124.7327624131.

The spelling of 1940625 in words is "one million, nine hundred forty thousand, six hundred twenty-five".