1949425 has 6 divisors (see below), whose sum is σ = 2417318. Its totient is φ = 1559520.

The previous prime is 1949417. The next prime is 1949459. The reversal of 1949425 is 5249491.

It can be written as a sum of positive squares in 3 ways, for example, as 183184 + 1766241 = 428^2 + 1329^2 .

It is not a de Polignac number, because 1949425 - 2³ = 1949417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38964 + ... + 39013.

2^1949425 is an apocalyptic number.

It is an amenable number.

1949425 is a deficient number, since it is larger than the sum of its proper divisors (467893).

1949425 is an equidigital number, since it uses as much as digits as its factorization.

1949425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77987 (or 77982 counting only the distinct ones).

The product of its digits is 12960, while the sum is 34.

The square root of 1949425 is about 1396.2181061711. The cubic root of 1949425 is about 124.9210167704.

The spelling of 1949425 in words is "one million, nine hundred forty-nine thousand, four hundred twenty-five".