225456742 has 24 divisors (see below), whose sum is σ = 399282264. Its totient is φ = 95179392.

The previous prime is 225456731. The next prime is 225456743. The reversal of 225456742 is 247654522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225456743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10603 + ... + 23734.

It is an arithmetic number, because the mean of its divisors is an integer number (16636761).

Almost surely, 2^225456742 is an apocalyptic number.

225456742 is a deficient number, since it is larger than the sum of its proper divisors (173825522).

225456742 is a wasteful number, since it uses less digits than its factorization.

225456742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34420 (or 34413 counting only the distinct ones).

The product of its digits is 134400, while the sum is 37.

The square root of 225456742 is about 15015.2170147487. The cubic root of 225456742 is about 608.6314765167.

It can be divided in two parts, 2254 and 56742, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 225456742 in words is "two hundred twenty-five million, four hundred fifty-six thousand, seven hundred forty-two".