40244630 has 16 divisors (see below), whose sum is σ = 72681840. Its totient is φ = 16044192.

The previous prime is 40244629. The next prime is 40244639. The reversal of 40244630 is 3644204.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40244596 and 40244605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3485 + ... + 9624.

It is an arithmetic number, because the mean of its divisors is an integer number (4542615).

Almost surely, 2^40244630 is an apocalyptic number.

40244630 is a deficient number, since it is larger than the sum of its proper divisors (32437210).

40244630 is a wasteful number, since it uses less digits than its factorization.

40244630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13423.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 40244630 is about 6343.8655408197. The cubic root of 40244630 is about 342.6909585666.

Adding to 40244630 its reverse (3644204), we get a palindrome (43888834).

The spelling of 40244630 in words is "forty million, two hundred forty-four thousand, six hundred thirty".