425221436 has 12 divisors (see below), whose sum is σ = 749066640. Its totient is φ = 211202400.

The previous prime is 425221399. The next prime is 425221439. The reversal of 425221436 is 634122524.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 425221399 and 425221408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425221439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351401 + ... + 352608.

It is an arithmetic number, because the mean of its divisors is an integer number (62422220).

Almost surely, 2^425221436 is an apocalyptic number.

It is an amenable number.

425221436 is a deficient number, since it is larger than the sum of its proper divisors (323845204).

425221436 is a wasteful number, since it uses less digits than its factorization.

425221436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704164 (or 704162 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 425221436 is about 20620.8980405801. The cubic root of 425221436 is about 751.9778527316.

The spelling of 425221436 in words is "four hundred twenty-five million, two hundred twenty-one thousand, four hundred thirty-six".