20419474 has 8 divisors (see below), whose sum is σ = 30648960. Its totient is φ = 10203156.

The previous prime is 20419459. The next prime is 20419481. The reversal of 20419474 is 47491402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 2967 + ... + 7045.

It is an arithmetic number, because the mean of its divisors is an integer number (3831120).

Almost surely, 2^20419474 is an apocalyptic number.

20419474 is a deficient number, since it is larger than the sum of its proper divisors (10229486).

20419474 is a wasteful number, since it uses less digits than its factorization.

20419474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6584.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20419474 is about 4518.7912100472. The cubic root of 20419474 is about 273.3263594625.

The spelling of 20419474 in words is "twenty million, four hundred nineteen thousand, four hundred seventy-four".