19045842 has 16 divisors (see below), whose sum is σ = 39320832. Its totient is φ = 6143760.

The previous prime is 19045841. The next prime is 19045843. The reversal of 19045842 is 24854091.

It is an interprime number because it is at equal distance from previous prime (19045841) and next prime (19045843).

It is not an unprimeable number, because it can be changed into a prime (19045841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51013 + ... + 51384.

It is an arithmetic number, because the mean of its divisors is an integer number (2457552).

Almost surely, 2^19045842 is an apocalyptic number.

19045842 is an abundant number, since it is smaller than the sum of its proper divisors (20274990).

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

19045842 is a wasteful number, since it uses less digits than its factorization.

19045842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102433.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 19045842 is about 4364.1542135905. The cubic root of 19045842 is about 267.0545975403.

The spelling of 19045842 in words is "nineteen million, forty-five thousand, eight hundred forty-two".