425344769 has 32 divisors (see below), whose sum is σ = 472780800. Its totient is φ = 381588480.

The previous prime is 425344757. The next prime is 425344807. The reversal of 425344769 is 967443524.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425344769 is a prime.

It is a super-2 number, since 2×425344769² = 361836345031326722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425344729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3764057 + ... + 3764169.

It is an arithmetic number, because the mean of its divisors is an integer number (14774400).

Almost surely, 2^425344769 is an apocalyptic number.

It is an amenable number.

425344769 is a deficient number, since it is larger than the sum of its proper divisors (47436031).

425344769 is a wasteful number, since it uses less digits than its factorization.

425344769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305.

The product of its digits is 725760, while the sum is 44.

The square root of 425344769 is about 20623.8883094338. Note that the first 3 decimals coincide. The cubic root of 425344769 is about 752.0505479688.

The spelling of 425344769 in words is "four hundred twenty-five million, three hundred forty-four thousand, seven hundred sixty-nine".