1629425 has 12 divisors (see below), whose sum is σ = 2309376. Its totient is φ = 1117200.

The previous prime is 1629409. The next prime is 1629427. The reversal of 1629425 is 5249261.

It is a happy number.

It is not a de Polignac number, because 1629425 - 2⁴ = 1629409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1629427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4481 + ... + 4830.

It is an arithmetic number, because the mean of its divisors is an integer number (192448).

2^1629425 is an apocalyptic number.

It is an amenable number.

1629425 is a deficient number, since it is larger than the sum of its proper divisors (679951).

1629425 is an equidigital number, since it uses as much as digits as its factorization.

1629425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9328 (or 9323 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 1629425 is about 1276.4893262382. The cubic root of 1629425 is about 117.6733520889.

The spelling of 1629425 in words is "one million, six hundred twenty-nine thousand, four hundred twenty-five".