40207949 has 8 divisors (see below), whose sum is σ = 41797920. Its totient is φ = 38631600.

The previous prime is 40207943. The next prime is 40207987. The reversal of 40207949 is 94970204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40207949 - 2⁸ = 40207693 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 (40207943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2834 + ... + 9404.

It is an arithmetic number, because the mean of its divisors is an integer number (5224740).

Almost surely, 2^40207949 is an apocalyptic number.

It is an amenable number.

40207949 is a deficient number, since it is larger than the sum of its proper divisors (1589971).

40207949 is a wasteful number, since it uses less digits than its factorization.

40207949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 40207949 is about 6340.9738211098. The cubic root of 40207949 is about 342.5868116031.

The spelling of 40207949 in words is "forty million, two hundred seven thousand, nine hundred forty-nine".