40071349 has 4 divisors (see below), whose sum is σ = 40103680. Its totient is φ = 40039020.

The previous prime is 40071347. The next prime is 40071371. The reversal of 40071349 is 94317004.

40071349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40071349 - 2¹ = 40071347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40071341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14229 + ... + 16810.

It is an arithmetic number, because the mean of its divisors is an integer number (10025920).

Almost surely, 2^40071349 is an apocalyptic number.

It is an amenable number.

40071349 is a deficient number, since it is larger than the sum of its proper divisors (32331).

40071349 is a wasteful number, since it uses less digits than its factorization.

40071349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32330.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40071349 is about 6330.1934409621. The cubic root of 40071349 is about 342.1984103428.

It can be divided in two parts, 4007 and 1349, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 40071349 in words is "forty million, seventy-one thousand, three hundred forty-nine".