19030439426 has 8 divisors (see below), whose sum is σ = 28553846544. Its totient is φ = 9512490580.

The previous prime is 19030439413. The next prime is 19030439431. The reversal of 19030439426 is 62493403091.

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

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, 1355840 + ... + 1369803.

It is an arithmetic number, because the mean of its divisors is an integer number (3569230818).

Almost surely, 2^19030439426 is an apocalyptic number.

19030439426 is a deficient number, since it is larger than the sum of its proper divisors (9523407118).

19030439426 is a wasteful number, since it uses less digits than its factorization.

19030439426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729136.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 19030439426 in words is "nineteen billion, thirty million, four hundred thirty-nine thousand, four hundred twenty-six".