19745052 has 12 divisors (see below), whose sum is σ = 46071816. Its totient is φ = 6581680.

The previous prime is 19745051. The next prime is 19745069. The reversal of 19745052 is 25054791.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19745051) 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, 822699 + ... + 822722.

It is an arithmetic number, because the mean of its divisors is an integer number (3839318).

Almost surely, 2^19745052 is an apocalyptic number.

19745052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19745052 is an abundant number, since it is smaller than the sum of its proper divisors (26326764).

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

19745052 is a wasteful number, since it uses less digits than its factorization.

19745052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645428 (or 1645426 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 19745052 is about 4443.5404802927. The cubic root of 19745052 is about 270.2834334991.

The spelling of 19745052 in words is "nineteen million, seven hundred forty-five thousand, fifty-two".