40049707 has 4 divisors (see below), whose sum is σ = 40068000. Its totient is φ = 40031416.

The previous prime is 40049683. The next prime is 40049717. The reversal of 40049707 is 70794004.

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 40049707 - 2¹⁹ = 39525419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40049717) 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, 5332 + ... + 10417.

It is an arithmetic number, because the mean of its divisors is an integer number (10017000).

Almost surely, 2^40049707 is an apocalyptic number.

40049707 is a deficient number, since it is larger than the sum of its proper divisors (18293).

40049707 is a wasteful number, since it uses less digits than its factorization.

40049707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18292.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 40049707 is about 6328.4837836562. The cubic root of 40049707 is about 342.1367936528.

The spelling of 40049707 in words is "forty million, forty-nine thousand, seven hundred seven".