225214944 has 24 divisors (see below), whose sum is σ = 591189480. Its totient is φ = 75071616.

The previous prime is 225214943. The next prime is 225214973. The reversal of 225214944 is 449412522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225214943) 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, 1172899 + ... + 1173090.

It is an arithmetic number, because the mean of its divisors is an integer number (24632895).

Almost surely, 2^225214944 is an apocalyptic number.

225214944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

225214944 is an abundant number, since it is smaller than the sum of its proper divisors (365974536).

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

225214944 is a wasteful number, since it uses less digits than its factorization.

225214944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2346002 (or 2345994 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 225214944 is about 15007.1630896715. The cubic root of 225214944 is about 608.4138168529.

The spelling of 225214944 in words is "two hundred twenty-five million, two hundred fourteen thousand, nine hundred forty-four".