19078242 has 32 divisors (see below), whose sum is σ = 40547520. Its totient is φ = 5967360.

The previous prime is 19078231. The next prime is 19078271. The reversal of 19078242 is 24287091.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12142 + ... + 13622.

It is an arithmetic number, because the mean of its divisors is an integer number (1267110).

Almost surely, 2^19078242 is an apocalyptic number.

19078242 is an abundant number, since it is smaller than the sum of its proper divisors (21469278).

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

19078242 is a wasteful number, since it uses less digits than its factorization.

19078242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 19078242 is about 4367.8646957066. The cubic root of 19078242 is about 267.2059458350.

The spelling of 19078242 in words is "nineteen million, seventy-eight thousand, two hundred forty-two".