1969425 has 18 divisors (see below), whose sum is σ = 3527862. Its totient is φ = 1050240.

The previous prime is 1969423. The next prime is 1969447. The reversal of 1969425 is 5249691.

It can be written as a sum of positive squares in 3 ways, for example, as 389376 + 1580049 = 624^2 + 1257^2 .

It is not a de Polignac number, because 1969425 - 2¹ = 1969423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1969425.

It is not an unprimeable number, because it can be changed into a prime (1969423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4152 + ... + 4601.

2^1969425 is an apocalyptic number.

1969425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1969425 is a deficient number, since it is larger than the sum of its proper divisors (1558437).

1969425 is a wasteful number, since it uses less digits than its factorization.

1969425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8769 (or 8761 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1969425 is about 1403.3620345442. The cubic root of 1969425 is about 125.3467704458.

The spelling of 1969425 in words is "one million, nine hundred sixty-nine thousand, four hundred twenty-five".