40630628 has 12 divisors (see below), whose sum is σ = 71148672. Its totient is φ = 20302440.

The previous prime is 40630621. The next prime is 40630643. The reversal of 40630628 is 82603604.

It is a self number, because there is not a number n which added to its sum of digits gives 40630628.

It is not an unprimeable number, because it can be changed into a prime (40630621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9233 + ... + 12903.

It is an arithmetic number, because the mean of its divisors is an integer number (5929056).

Almost surely, 2^40630628 is an apocalyptic number.

It is an amenable number.

40630628 is a deficient number, since it is larger than the sum of its proper divisors (30518044).

40630628 is a wasteful number, since it uses less digits than its factorization.

40630628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6442 (or 6440 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 40630628 is about 6374.2158733447. The cubic root of 40630628 is about 343.7830906767.

The spelling of 40630628 in words is "forty million, six hundred thirty thousand, six hundred twenty-eight".