40109192 has 8 divisors (see below), whose sum is σ = 75204750. Its totient is φ = 20054592.

The previous prime is 40109183. The next prime is 40109197. The reversal of 40109192 is 29190104.

It can be written as a sum of positive squares in only one way, i.e., 29311396 + 10797796 = 5414^2 + 3286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (40109197) 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, 2506817 + ... + 2506832.

Almost surely, 2^40109192 is an apocalyptic number.

It is an amenable number.

40109192 is a deficient number, since it is larger than the sum of its proper divisors (35095558).

40109192 is a wasteful number, since it uses less digits than its factorization.

40109192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013655 (or 5013651 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 40109192 is about 6333.1818227491. The cubic root of 40109192 is about 342.3060994219.

Adding to 40109192 its reverse (29190104), we get a palindrome (69299296).

The spelling of 40109192 in words is "forty million, one hundred nine thousand, one hundred ninety-two".