425440413 has 24 divisors (see below), whose sum is σ = 626052440. Its totient is φ = 278328960.

The previous prime is 425440403. The next prime is 425440417. The reversal of 425440413 is 314044524.

It is a happy number.

425440413 is a `hidden beast` number, since 4 + 254 + 404 + 1 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19740249 + 405700164 = 4443^2 + 20142^2 .

It is not a de Polignac number, because 425440413 - 2¹² = 425436317 is a prime.

It is a super-2 number, since 2×425440413² = 361999090027221138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425440417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388695 + ... + 389787.

Almost surely, 2^425440413 is an apocalyptic number.

It is an amenable number.

425440413 is a deficient number, since it is larger than the sum of its proper divisors (200612027).

425440413 is a wasteful number, since it uses less digits than its factorization.

425440413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869 (or 1866 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 425440413 is about 20626.2069465038. The cubic root of 425440413 is about 752.1069130144.

Adding to 425440413 its reverse (314044524), we get a palindrome (739484937).

The spelling of 425440413 in words is "four hundred twenty-five million, four hundred forty thousand, four hundred thirteen".