19040956 has 12 divisors (see below), whose sum is σ = 36351000. Its totient is φ = 8654960.

The previous prime is 19040953. The next prime is 19040963. The reversal of 19040956 is 65904091.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19040951) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 216331 + ... + 216418.

It is an arithmetic number, because the mean of its divisors is an integer number (3029250).

Almost surely, 2^19040956 is an apocalyptic number.

It is an amenable number.

19040956 is a deficient number, since it is larger than the sum of its proper divisors (17310044).

19040956 is a wasteful number, since it uses less digits than its factorization.

19040956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432764 (or 432762 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 19040956 is about 4363.5943899496. The cubic root of 19040956 is about 267.0317589532.

The spelling of 19040956 in words is "nineteen million, forty thousand, nine hundred fifty-six".