40685222 has 4 divisors (see below), whose sum is σ = 61027836. Its totient is φ = 20342610.

The previous prime is 40685191. The next prime is 40685257. The reversal of 40685222 is 22258604.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×40685222³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171304 + ... + 10171307.

It is an arithmetic number, because the mean of its divisors is an integer number (15256959).

Almost surely, 2^40685222 is an apocalyptic number.

40685222 is a deficient number, since it is larger than the sum of its proper divisors (20342614).

40685222 is a wasteful number, since it uses less digits than its factorization.

40685222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20342613.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 40685222 is about 6378.4968448687. The cubic root of 40685222 is about 343.9369983325.

The spelling of 40685222 in words is "forty million, six hundred eighty-five thousand, two hundred twenty-two".