40628620040 has 16 divisors (see below), whose sum is σ = 91414395180. Its totient is φ = 16251448000.

The previous prime is 40628620027. The next prime is 40628620051. The reversal of 40628620040 is 4002682604.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39713315524 + 915304516 = 199282^2 + 30254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40628619979 and 40628620006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507857711 + ... + 507857790.

Almost surely, 2^40628620040 is an apocalyptic number.

40628620040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40628620040 is an abundant number, since it is smaller than the sum of its proper divisors (50785775140).

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

40628620040 is a wasteful number, since it uses less digits than its factorization.

40628620040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015715512 (or 1015715508 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 40628620040 in words is "forty billion, six hundred twenty-eight million, six hundred twenty thousand, forty".