40222509 has 8 divisors (see below), whose sum is σ = 53660160. Its totient is φ = 26799936.

The previous prime is 40222471. The next prime is 40222529. The reversal of 40222509 is 90522204.

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

It is not a de Polignac number, because 40222509 - 2⁸ = 40222253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40222529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6309 + ... + 10965.

It is an arithmetic number, because the mean of its divisors is an integer number (6707520).

Almost surely, 2^40222509 is an apocalyptic number.

It is an amenable number.

40222509 is a deficient number, since it is larger than the sum of its proper divisors (13437651).

40222509 is a wasteful number, since it uses less digits than its factorization.

40222509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7539.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 40222509 is about 6342.1218058312. The cubic root of 40222509 is about 342.6281588336.

The spelling of 40222509 in words is "forty million, two hundred twenty-two thousand, five hundred nine".