225696408 has 32 divisors (see below), whose sum is σ = 644847360. Its totient is φ = 64484640.

The previous prime is 225696407. The next prime is 225696413. The reversal of 225696408 is 804696522.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 225696408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225696407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671548 + ... + 671883.

It is an arithmetic number, because the mean of its divisors is an integer number (20151480).

Almost surely, 2^225696408 is an apocalyptic number.

225696408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

225696408 is an abundant number, since it is smaller than the sum of its proper divisors (419150952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225696408 is a wasteful number, since it uses less digits than its factorization.

225696408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343447 (or 1343443 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 225696408 is about 15023.1956653703. The cubic root of 225696408 is about 608.8470634973.

The spelling of 225696408 in words is "two hundred twenty-five million, six hundred ninety-six thousand, four hundred eight".