40222945 has 8 divisors (see below), whose sum is σ = 55162944. Its totient is φ = 27581424.

The previous prime is 40222939. The next prime is 40222951. The reversal of 40222945 is 54922204.

It is an interprime number because it is at equal distance from previous prime (40222939) and next prime (40222951).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40222945 - 2⁷ = 40222817 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 574579 + ... + 574648.

It is an arithmetic number, because the mean of its divisors is an integer number (6895368).

Almost surely, 2^40222945 is an apocalyptic number.

It is an amenable number.

40222945 is a deficient number, since it is larger than the sum of its proper divisors (14939999).

40222945 is a wasteful number, since it uses less digits than its factorization.

40222945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149239.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 40222945 is about 6342.1561790924. The cubic root of 40222945 is about 342.6293968248.

The spelling of 40222945 in words is "forty million, two hundred twenty-two thousand, nine hundred forty-five".