1025434 has 4 divisors (see below), whose sum is σ = 1538154. Its totient is φ = 512716.

The previous prime is 1025419. The next prime is 1025443. The reversal of 1025434 is 4345201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4345201 = 7 ⋅620743.

It can be written as a sum of positive squares in only one way, i.e., 717409 + 308025 = 847^2 + 555^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256357 + ... + 256360.

2^1025434 is an apocalyptic number.

1025434 is a deficient number, since it is larger than the sum of its proper divisors (512720).

1025434 is an equidigital number, since it uses as much as digits as its factorization.

1025434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512719.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1025434 is about 1012.6371512047. The cubic root of 1025434 is about 100.8407122225.

The spelling of 1025434 in words is "one million, twenty-five thousand, four hundred thirty-four".