19219442 has 16 divisors (see below), whose sum is σ = 32465664. Its totient is φ = 8454000.

The previous prime is 19219433. The next prime is 19219451. The reversal of 19219442 is 24491291.

It is an interprime number because it is at equal distance from previous prime (19219433) and next prime (19219451).

It is a junction number, because it is equal to n+sod(n) for n = 19219399 and 19219408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13409 + ... + 14772.

It is an arithmetic number, because the mean of its divisors is an integer number (2029104).

Almost surely, 2^19219442 is an apocalyptic number.

19219442 is a deficient number, since it is larger than the sum of its proper divisors (13246222).

19219442 is a wasteful number, since it uses less digits than its factorization.

19219442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28225.

The product of its digits is 5184, while the sum is 32.

The square root of 19219442 is about 4383.9984032844. The cubic root of 19219442 is about 267.8635322886.

The spelling of 19219442 in words is "nineteen million, two hundred nineteen thousand, four hundred forty-two".