19420174 has 8 divisors (see below), whose sum is σ = 29481480. Its totient is φ = 9593016.

The previous prime is 19420139. The next prime is 19420189. The reversal of 19420174 is 47102491.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58329 + ... + 58660.

It is an arithmetic number, because the mean of its divisors is an integer number (3685185).

Almost surely, 2^19420174 is an apocalyptic number.

19420174 is a deficient number, since it is larger than the sum of its proper divisors (10061306).

19420174 is a wasteful number, since it uses less digits than its factorization.

19420174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117074.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 19420174 is about 4406.8326494207. The cubic root of 19420174 is about 268.7928459541.

The spelling of 19420174 in words is "nineteen million, four hundred twenty thousand, one hundred seventy-four".