19745474 has 16 divisors (see below), whose sum is σ = 33959616. Its totient is φ = 8434800.

The previous prime is 19745461. The next prime is 19745513. The reversal of 19745474 is 47454791.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2504 + ... + 6764.

It is an arithmetic number, because the mean of its divisors is an integer number (2122476).

Almost surely, 2^19745474 is an apocalyptic number.

19745474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19745474 is a deficient number, since it is larger than the sum of its proper divisors (14214142).

19745474 is a wasteful number, since it uses less digits than its factorization.

19745474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601.

The product of its digits is 141120, while the sum is 41.

The square root of 19745474 is about 4443.5879646970. The cubic root of 19745474 is about 270.2853590245.

The spelling of 19745474 in words is "nineteen million, seven hundred forty-five thousand, four hundred seventy-four".