40712039 has 4 divisors (see below), whose sum is σ = 41285520. Its totient is φ = 40138560.

The previous prime is 40712033. The next prime is 40712051. The reversal of 40712039 is 93021704.

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

It is a cyclic number.

It is not a de Polignac number, because 40712039 - 2¹² = 40707943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40711999 and 40712017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40712033) 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, 286634 + ... + 286775.

It is an arithmetic number, because the mean of its divisors is an integer number (10321380).

Almost surely, 2^40712039 is an apocalyptic number.

40712039 is a deficient number, since it is larger than the sum of its proper divisors (573481).

40712039 is an equidigital number, since it uses as much as digits as its factorization.

40712039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573480.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 40712039 is about 6380.5986396262. The cubic root of 40712039 is about 344.0125485552.

The spelling of 40712039 in words is "forty million, seven hundred twelve thousand, thirty-nine".