19740364 has 12 divisors (see below), whose sum is σ = 39480784. Its totient is φ = 8460144.

The previous prime is 19740361. The next prime is 19740401. The reversal of 19740364 is 46304791.

It is a happy number.

19740364 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (19740361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352479 + ... + 352534.

Almost surely, 2^19740364 is an apocalyptic number.

19740364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19740364 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19740364 is a wasteful number, since it uses less digits than its factorization.

19740364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705024 (or 705022 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 19740364 is about 4443.0129416872. The cubic root of 19740364 is about 270.2620409829.

The spelling of 19740364 in words is "nineteen million, seven hundred forty thousand, three hundred sixty-four".