19428294 has 8 divisors (see below), whose sum is σ = 38856600. Its totient is φ = 6476096.

The previous prime is 19428209. The next prime is 19428313. The reversal of 19428294 is 49282491.

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

19428294 is an admirable number.

It is a Curzon number.

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, 1619019 + ... + 1619030.

It is an arithmetic number, because the mean of its divisors is an integer number (4857075).

Almost surely, 2^19428294 is an apocalyptic number.

19428294 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.

19428294 is a wasteful number, since it uses less digits than its factorization.

19428294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238054.

The product of its digits is 41472, while the sum is 39.

The square root of 19428294 is about 4407.7538497516. The cubic root of 19428294 is about 268.8303034589.

It can be divided in two parts, 194282 and 94, that added together give a triangular number (194376 = T₆₂₃).

The spelling of 19428294 in words is "nineteen million, four hundred twenty-eight thousand, two hundred ninety-four".