19628349 has 16 divisors (see below), whose sum is σ = 29668800. Its totient is φ = 11442816.

The previous prime is 19628347. The next prime is 19628351. The reversal of 19628349 is 94382691.

It is an interprime number because it is at equal distance from previous prime (19628347) and next prime (19628351).

It is not a de Polignac number, because 19628349 - 2¹ = 19628347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19628349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19628347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12504 + ... + 13985.

It is an arithmetic number, because the mean of its divisors is an integer number (1854300).

Almost surely, 2^19628349 is an apocalyptic number.

19628349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

19628349 is a deficient number, since it is larger than the sum of its proper divisors (10040451).

19628349 is a wasteful number, since it uses less digits than its factorization.

19628349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26524.

The product of its digits is 93312, while the sum is 42.

The square root of 19628349 is about 4430.3892605504. The cubic root of 19628349 is about 269.7498781036.

The spelling of 19628349 in words is "nineteen million, six hundred twenty-eight thousand, three hundred forty-nine".