40630122 has 48 divisors (see below), whose sum is σ = 95259528. Its totient is φ = 12441600.

The previous prime is 40630111. The next prime is 40630129. The reversal of 40630122 is 22103604.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32387481 + 8242641 = 5691^2 + 2871^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40630095 and 40630104.

It is not an unprimeable number, because it can be changed into a prime (40630129) 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 23 ways as a sum of consecutive naturals, for example, 93618 + ... + 94050.

Almost surely, 2^40630122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40630122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47629764).

40630122 is an abundant number, since it is smaller than the sum of its proper divisors (54629406).

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

40630122 is a wasteful number, since it uses less digits than its factorization.

40630122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40630122 is about 6374.1761820646. The cubic root of 40630122 is about 343.7816635516.

Adding to 40630122 its reverse (22103604), we get a palindrome (62733726).

The spelling of 40630122 in words is "forty million, six hundred thirty thousand, one hundred twenty-two".