1439425 has 24 divisors (see below), whose sum is σ = 1985984. Its totient is φ = 1028160.

The previous prime is 1439413. The next prime is 1439429. The reversal of 1439425 is 5249341.

It is not a de Polignac number, because 1439425 - 2⁵ = 1439393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1439393 and 1439402.

It is not an unprimeable number, because it can be changed into a prime (1439429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13924 + ... + 14026.

2^1439425 is an apocalyptic number.

It is an amenable number.

1439425 is a deficient number, since it is larger than the sum of its proper divisors (546559).

1439425 is a wasteful number, since it uses less digits than its factorization.

1439425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 164 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 1439425 is about 1199.7603927452. The cubic root of 1439425 is about 112.9092910281.

The spelling of 1439425 in words is "one million, four hundred thirty-nine thousand, four hundred twenty-five".