225246742 has 16 divisors (see below), whose sum is σ = 389557152. Its totient is φ = 95679360.

The previous prime is 225246737. The next prime is 225246757. The reversal of 225246742 is 247642522.

It is a super-2 number, since 2×225246742² = 101472189563229128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225246698 and 225246707.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 69609 + ... + 72772.

It is an arithmetic number, because the mean of its divisors is an integer number (24347322).

Almost surely, 2^225246742 is an apocalyptic number.

225246742 is a deficient number, since it is larger than the sum of its proper divisors (164310410).

225246742 is a wasteful number, since it uses less digits than its factorization.

225246742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142503.

The product of its digits is 53760, while the sum is 34.

The square root of 225246742 is about 15008.2224796943. Note that the first 3 decimals coincide. The cubic root of 225246742 is about 608.4424493995.

The spelling of 225246742 in words is "two hundred twenty-five million, two hundred forty-six thousand, seven hundred forty-two".