40000036 has 12 divisors (see below), whose sum is σ = 73043712. Its totient is φ = 19130408.

The previous prime is 40000033. The next prime is 40000061. The reversal of 40000036 is 63000004.

40000036 is a modest number, since divided by 36 gives 4 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 39999980 and 40000025.

It is not an unprimeable number, because it can be changed into a prime (40000033) 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, 217300 + ... + 217483.

It is an arithmetic number, because the mean of its divisors is an integer number (6086976).

Almost surely, 2^40000036 is an apocalyptic number.

40000036 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

40000036 is a deficient number, since it is larger than the sum of its proper divisors (33043676).

40000036 is a wasteful number, since it uses less digits than its factorization.

40000036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434810 (or 434808 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 40000036 is about 6324.5581663860. The cubic root of 40000036 is about 341.9952919339.

The spelling of 40000036 in words is "forty million, thirty-six", and thus it is an aban number, an eban number, and an uban number.