40909630 has 16 divisors (see below), whose sum is σ = 73949760. Its totient is φ = 16294432.

The previous prime is 40909613. The next prime is 40909637. The reversal of 40909630 is 3690904.

It is a junction number, because it is equal to n+sod(n) for n = 40909592 and 40909601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40909637) 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, 6169 + ... + 10948.

It is an arithmetic number, because the mean of its divisors is an integer number (4621860).

Almost surely, 2^40909630 is an apocalyptic number.

40909630 is a deficient number, since it is larger than the sum of its proper divisors (33040130).

40909630 is a wasteful number, since it uses less digits than its factorization.

40909630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17363.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 40909630 is about 6396.0636332044. The cubic root of 40909630 is about 344.5681918257.

The spelling of 40909630 in words is "forty million, nine hundred nine thousand, six hundred thirty".