40220316 has 36 divisors (see below), whose sum is σ = 102578112. Its totient is φ = 13286784.

The previous prime is 40220309. The next prime is 40220329. The reversal of 40220316 is 61302204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 876 + ... + 9011.

It is an arithmetic number, because the mean of its divisors is an integer number (2849392).

Almost surely, 2^40220316 is an apocalyptic number.

It is an amenable number.

40220316 is an abundant number, since it is smaller than the sum of its proper divisors (62357796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40220316 is a wasteful number, since it uses less digits than its factorization.

40220316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010 (or 10005 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 40220316 is about 6341.9489118094. The cubic root of 40220316 is about 342.6219318293.

The spelling of 40220316 in words is "forty million, two hundred twenty thousand, three hundred sixteen".