40222292 has 24 divisors (see below), whose sum is σ = 76954080. Its totient is φ = 18243360.

The previous prime is 40222253. The next prime is 40222319. The reversal of 40222292 is 29222204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31898 + ... + 33134.

It is an arithmetic number, because the mean of its divisors is an integer number (3206420).

Almost surely, 2^40222292 is an apocalyptic number.

It is an amenable number.

40222292 is a deficient number, since it is larger than the sum of its proper divisors (36731788).

40222292 is a wasteful number, since it uses less digits than its factorization.

40222292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991 (or 1989 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 40222292 is about 6342.1046979690. The cubic root of 40222292 is about 342.6275426741.

Adding to 40222292 its reverse (29222204), we get a palindrome (69444496).

The spelling of 40222292 in words is "forty million, two hundred twenty-two thousand, two hundred ninety-two".