40112164 has 6 divisors (see below), whose sum is σ = 70196294. Its totient is φ = 20056080.

The previous prime is 40112143. The next prime is 40112167. The reversal of 40112164 is 46121104.

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 43264 = 6330^2 + 208^2 .

It is not an unprimeable number, because it can be changed into a prime (40112167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5014017 + ... + 5014024.

Almost surely, 2^40112164 is an apocalyptic number.

It is an amenable number.

40112164 is a deficient number, since it is larger than the sum of its proper divisors (30084130).

40112164 is a wasteful number, since it uses less digits than its factorization.

40112164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10028045 (or 10028043 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 40112164 is about 6333.4164555949. The cubic root of 40112164 is about 342.3145539145.

Adding to 40112164 its reverse (46121104), we get a palindrome (86233268).

The spelling of 40112164 in words is "forty million, one hundred twelve thousand, one hundred sixty-four".