19740698 has 32 divisors (see below), whose sum is σ = 31819392. Its totient is φ = 9172800.

The previous prime is 19740697. The next prime is 19740703. The reversal of 19740698 is 89604791.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19740691) 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 15 ways as a sum of consecutive naturals, for example, 278003 + ... + 278073.

It is an arithmetic number, because the mean of its divisors is an integer number (994356).

Almost surely, 2^19740698 is an apocalyptic number.

19740698 is a deficient number, since it is larger than the sum of its proper divisors (12078694).

19740698 is a wasteful number, since it uses less digits than its factorization.

19740698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 19740698 is about 4443.0505286346. The cubic root of 19740698 is about 270.2635652205.

The spelling of 19740698 in words is "nineteen million, seven hundred forty thousand, six hundred ninety-eight".