40628634 has 16 divisors (see below), whose sum is σ = 82791072. Its totient is φ = 13287248.

The previous prime is 40628611. The next prime is 40628647. The reversal of 40628634 is 43682604.

It is a junction number, because it is equal to n+sod(n) for n = 40628595 and 40628604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63564 + ... + 64199.

It is an arithmetic number, because the mean of its divisors is an integer number (5174442).

Almost surely, 2^40628634 is an apocalyptic number.

40628634 is an abundant number, since it is smaller than the sum of its proper divisors (42162438).

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

40628634 is a wasteful number, since it uses less digits than its factorization.

40628634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127821.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 40628634 is about 6374.0594600302. The cubic root of 40628634 is about 343.7774667199. Note that the first 3 decimals are identical.

The spelling of 40628634 in words is "forty million, six hundred twenty-eight thousand, six hundred thirty-four".