40000027 has 4 divisors (see below), whose sum is σ = 40292136. Its totient is φ = 39707920.

The previous prime is 40000021. The next prime is 40000033. The reversal of 40000027 is 72000004.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40000021) and next prime (40000033).

It is a cyclic number.

It is not a de Polignac number, because 40000027 - 2⁷ = 39999899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39999971 and 40000016.

It is not an unprimeable number, because it can be changed into a prime (40000021) 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, 145849 + ... + 146122.

It is an arithmetic number, because the mean of its divisors is an integer number (10073034).

Almost surely, 2^40000027 is an apocalyptic number.

40000027 is a deficient number, since it is larger than the sum of its proper divisors (292109).

40000027 is a wasteful number, since it uses less digits than its factorization.

40000027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292108.

The product of its (nonzero) digits is 56, while the sum is 13.

The square root of 40000027 is about 6324.5574548738. The cubic root of 40000027 is about 341.9952662842.

The spelling of 40000027 in words is "forty million, twenty-seven", and thus it is an aban number and an uban number.