40229207 has 4 divisors (see below), whose sum is σ = 40242240. Its totient is φ = 40216176.

The previous prime is 40229179. The next prime is 40229221. The reversal of 40229207 is 70292204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40229207 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 (40229257) 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, 1019 + ... + 9027.

It is an arithmetic number, because the mean of its divisors is an integer number (10060560).

Almost surely, 2^40229207 is an apocalyptic number.

40229207 is a deficient number, since it is larger than the sum of its proper divisors (13033).

40229207 is an equidigital number, since it uses as much as digits as its factorization.

40229207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13032.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40229207 is about 6342.6498405635. The cubic root of 40229207 is about 342.6471763447.

The spelling of 40229207 in words is "forty million, two hundred twenty-nine thousand, two hundred seven".