19122942 has 16 divisors (see below), whose sum is σ = 38500992. Its totient is φ = 6331800.

The previous prime is 19122923. The next prime is 19122947. The reversal of 19122942 is 24922191.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19122947) 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, 9648 + ... + 11459.

It is an arithmetic number, because the mean of its divisors is an integer number (2406312).

Almost surely, 2^19122942 is an apocalyptic number.

19122942 is an abundant number, since it is smaller than the sum of its proper divisors (19378050).

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

19122942 is a wasteful number, since it uses less digits than its factorization.

19122942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21263.

The product of its digits is 2592, while the sum is 30.

The square root of 19122942 is about 4372.9786187449. The cubic root of 19122942 is about 267.4144694090.

It can be divided in two parts, 191229 and 42, that added together give a triangular number (191271 = T₆₁₈).

The spelling of 19122942 in words is "nineteen million, one hundred twenty-two thousand, nine hundred forty-two".