40630225 has 6 divisors (see below), whose sum is σ = 50381510. Its totient is φ = 32504160.

The previous prime is 40630223. The next prime is 40630229. The reversal of 40630225 is 52203604.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12082576 + 28547649 = 3476^2 + 5343^2 .

It is not a de Polignac number, because 40630225 - 2¹ = 40630223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40630196 and 40630205.

It is not an unprimeable number, because it can be changed into a prime (40630223) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 812580 + ... + 812629.

Almost surely, 2^40630225 is an apocalyptic number.

It is an amenable number.

40630225 is a deficient number, since it is larger than the sum of its proper divisors (9751285).

40630225 is a wasteful number, since it uses less digits than its factorization.

40630225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625219 (or 1625214 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 40630225 is about 6374.1842615350. The cubic root of 40630225 is about 343.7819540543.

Adding to 40630225 its reverse (52203604), we get a palindrome (92833829).

The spelling of 40630225 in words is "forty million, six hundred thirty thousand, two hundred twenty-five".