34405425 has 24 divisors (see below), whose sum is σ = 63205280. Its totient is φ = 18349200.

The previous prime is 34405417. The next prime is 34405429. The reversal of 34405425 is 52450443.

It is not a de Polignac number, because 34405425 - 2³ = 34405417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (34405429) 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, 24811 + ... + 26160.

Almost surely, 2^34405425 is an apocalyptic number.

It is an amenable number.

34405425 is a deficient number, since it is larger than the sum of its proper divisors (28799855).

34405425 is a wasteful number, since it uses less digits than its factorization.

34405425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50990 (or 50979 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 34405425 is about 5865.6137786254. The cubic root of 34405425 is about 325.2437618971.

Adding to 34405425 its reverse (52450443), we get a palindrome (86855868).

The spelling of 34405425 in words is "thirty-four million, four hundred five thousand, four hundred twenty-five".