40147222 has 4 divisors (see below), whose sum is σ = 60220836. Its totient is φ = 20073610.

The previous prime is 40147187. The next prime is 40147243. The reversal of 40147222 is 22274104.

It is a happy number.

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

It is a super-2 number, since 2×40147222² = 3223598868634568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 40147193 and 40147202.

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 as a sum of consecutive naturals, namely, 10036804 + ... + 10036807.

It is an arithmetic number, because the mean of its divisors is an integer number (15055209).

Almost surely, 2^40147222 is an apocalyptic number.

40147222 is a deficient number, since it is larger than the sum of its proper divisors (20073614).

40147222 is a wasteful number, since it uses less digits than its factorization.

40147222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20073613.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 40147222 is about 6336.1835516342. The cubic root of 40147222 is about 342.4142524256.

It can be divided in two parts, 4014 and 7222, that added together give a square (11236 = 106²).

The spelling of 40147222 in words is "forty million, one hundred forty-seven thousand, two hundred twenty-two".