40220855 has 4 divisors (see below), whose sum is σ = 48265032. Its totient is φ = 32176680.

The previous prime is 40220839. The next prime is 40220863. The reversal of 40220855 is 55802204.

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

It is not a de Polignac number, because 40220855 - 2⁴ = 40220839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022081 + ... + 4022090.

It is an arithmetic number, because the mean of its divisors is an integer number (12066258).

Almost surely, 2^40220855 is an apocalyptic number.

40220855 is a deficient number, since it is larger than the sum of its proper divisors (8044177).

40220855 is an equidigital number, since it uses as much as digits as its factorization.

40220855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044176.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 40220855 is about 6341.9914064906. The cubic root of 40220855 is about 342.6234623361.

The spelling of 40220855 in words is "forty million, two hundred twenty thousand, eight hundred fifty-five".