40223245 has 12 divisors (see below), whose sum is σ = 48924540. Its totient is φ = 31746624.

The previous prime is 40223233. The next prime is 40223257. The reversal of 40223245 is 54232204.

It is an interprime number because it is at equal distance from previous prime (40223233) and next prime (40223257).

It can be written as a sum of positive squares in 2 ways, for example, as 23990404 + 16232841 = 4898^2 + 4029^2 .

It is not a de Polignac number, because 40223245 - 2²³ = 31834637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30561 + ... + 31849.

It is an arithmetic number, because the mean of its divisors is an integer number (4077045).

Almost surely, 2^40223245 is an apocalyptic number.

It is an amenable number.

40223245 is a deficient number, since it is larger than the sum of its proper divisors (8701295).

40223245 is an equidigital number, since it uses as much as digits as its factorization.

40223245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1373 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40223245 is about 6342.1798303107. The cubic root of 40223245 is about 342.6302486484.

Adding to 40223245 its reverse (54232204), we get a palindrome (94455449).

The spelling of 40223245 in words is "forty million, two hundred twenty-three thousand, two hundred forty-five".