40630028 has 6 divisors (see below), whose sum is σ = 71102556. Its totient is φ = 20315012.

The previous prime is 40630019. The next prime is 40630039. The reversal of 40630028 is 82003604.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40629985 and 40630012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078750 + ... + 5078757.

It is an arithmetic number, because the mean of its divisors is an integer number (11850426).

Almost surely, 2^40630028 is an apocalyptic number.

It is an amenable number.

40630028 is a deficient number, since it is larger than the sum of its proper divisors (30472528).

40630028 is a wasteful number, since it uses less digits than its factorization.

40630028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10157511 (or 10157509 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40630028 is about 6374.1688085585. The cubic root of 40630028 is about 343.7813984322.

The spelling of 40630028 in words is "forty million, six hundred thirty thousand, twenty-eight".