40206206 has 4 divisors (see below), whose sum is σ = 60309312. Its totient is φ = 20103102.

The previous prime is 40206203. The next prime is 40206251. The reversal of 40206206 is 60260204.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40206203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051550 + ... + 10051553.

It is an arithmetic number, because the mean of its divisors is an integer number (15077328).

Almost surely, 2^40206206 is an apocalyptic number.

40206206 is a deficient number, since it is larger than the sum of its proper divisors (20103106).

40206206 is a wasteful number, since it uses less digits than its factorization.

40206206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20103105.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 40206206 is about 6340.8363801631. The cubic root of 40206206 is about 342.5818611936.

The spelling of 40206206 in words is "forty million, two hundred six thousand, two hundred six".