40244164 has 6 divisors (see below), whose sum is σ = 70427294. Its totient is φ = 20122080.

The previous prime is 40244137. The next prime is 40244177. The reversal of 40244164 is 46144204.

It can be written as a sum of positive squares in only one way, i.e., 39162564 + 1081600 = 6258^2 + 1040^2 .

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, 5030517 + ... + 5030524.

Almost surely, 2^40244164 is an apocalyptic number.

It is an amenable number.

40244164 is a deficient number, since it is larger than the sum of its proper divisors (30183130).

40244164 is a wasteful number, since it uses less digits than its factorization.

40244164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10061045 (or 10061043 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 40244164 is about 6343.8288123183. The cubic root of 40244164 is about 342.6896358676.

Adding to 40244164 its reverse (46144204), we get a palindrome (86388368).

The spelling of 40244164 in words is "forty million, two hundred forty-four thousand, one hundred sixty-four".