40317630 has 32 divisors (see below), whose sum is σ = 98591904. Its totient is φ = 10548096.

The previous prime is 40317619. The next prime is 40317631. The reversal of 40317630 is 3671304.

It is a super-2 number, since 2×40317630² = 3251022577633800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40317630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40317631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11089 + ... + 14268.

It is an arithmetic number, because the mean of its divisors is an integer number (3080997).

Almost surely, 2^40317630 is an apocalyptic number.

40317630 is an abundant number, since it is smaller than the sum of its proper divisors (58274274).

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

40317630 is a wasteful number, since it uses less digits than its factorization.

40317630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25420.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 40317630 is about 6349.6165238540. The cubic root of 40317630 is about 342.8980365409.

Adding to 40317630 its reverse (3671304), we get a palindrome (43988934).

The spelling of 40317630 in words is "forty million, three hundred seventeen thousand, six hundred thirty".