40220364 has 24 divisors (see below), whose sum is σ = 95171328. Its totient is φ = 13217680.

The previous prime is 40220329. The next prime is 40220381. The reversal of 40220364 is 46302204.

It is a self number, because there is not a number n which added to its sum of digits gives 40220364.

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, 22752 + ... + 24455.

It is an arithmetic number, because the mean of its divisors is an integer number (3965472).

Almost surely, 2^40220364 is an apocalyptic number.

It is an amenable number.

40220364 is an abundant number, since it is smaller than the sum of its proper divisors (54950964).

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

40220364 is a wasteful number, since it uses less digits than its factorization.

40220364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47285 (or 47283 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 40220364 is about 6341.9526961339. The cubic root of 40220364 is about 342.6220681273.

Adding to 40220364 its reverse (46302204), we get a palindrome (86522568).

The spelling of 40220364 in words is "forty million, two hundred twenty thousand, three hundred sixty-four".