40202223 has 4 divisors (see below), whose sum is σ = 53602968. Its totient is φ = 26801480.

The previous prime is 40202219. The next prime is 40202243. The reversal of 40202223 is 32220204.

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 40202223 - 2² = 40202219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40202203) 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, 6700368 + ... + 6700373.

It is an arithmetic number, because the mean of its divisors is an integer number (13400742).

Almost surely, 2^40202223 is an apocalyptic number.

40202223 is a deficient number, since it is larger than the sum of its proper divisors (13400745).

40202223 is a wasteful number, since it uses less digits than its factorization.

40202223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13400744.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 40202223 is about 6340.5222970982. The cubic root of 40202223 is about 342.5705482749.

Adding to 40202223 its reverse (32220204), we get a palindrome (72422427).

The spelling of 40202223 in words is "forty million, two hundred two thousand, two hundred twenty-three".