40223613 has 4 divisors (see below), whose sum is σ = 53631488. Its totient is φ = 26815740.

The previous prime is 40223597. The next prime is 40223629. The reversal of 40223613 is 31632204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (40223597) and next prime (40223629).

It is not a de Polignac number, because 40223613 - 2⁴ = 40223597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40223613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40223693) 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, 6703933 + ... + 6703938.

It is an arithmetic number, because the mean of its divisors is an integer number (13407872).

Almost surely, 2^40223613 is an apocalyptic number.

It is an amenable number.

40223613 is a deficient number, since it is larger than the sum of its proper divisors (13407875).

40223613 is a wasteful number, since it uses less digits than its factorization.

40223613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13407874.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 40223613 is about 6342.2088423514. The cubic root of 40223613 is about 342.6312935463.

Adding to 40223613 its reverse (31632204), we get a palindrome (71855817).

The spelling of 40223613 in words is "forty million, two hundred twenty-three thousand, six hundred thirteen".