19103442 has 16 divisors (see below), whose sum is σ = 38777952. Its totient is φ = 6272640.

The previous prime is 19103423. The next prime is 19103477. The reversal of 19103442 is 24430191.

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, 23359 + ... + 24162.

It is an arithmetic number, because the mean of its divisors is an integer number (2423622).

Almost surely, 2^19103442 is an apocalyptic number.

19103442 is an abundant number, since it is smaller than the sum of its proper divisors (19674510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19103442 is a wasteful number, since it uses less digits than its factorization.

19103442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47593.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 19103442 is about 4370.7484484925. The cubic root of 19103442 is about 267.3235427510.

The spelling of 19103442 in words is "nineteen million, one hundred three thousand, four hundred forty-two".