19106842 has 12 divisors (see below), whose sum is σ = 28927710. Its totient is φ = 9465056.

The previous prime is 19106821. The next prime is 19106851. The reversal of 19106842 is 24860191.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18757561 + 349281 = 4331^2 + 591^2 .

It is a super-2 number, since 2×19106842² = 730142822425928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37284 + ... + 37792.

Almost surely, 2^19106842 is an apocalyptic number.

19106842 is a deficient number, since it is larger than the sum of its proper divisors (9820868).

19106842 is an equidigital number, since it uses as much as digits as its factorization.

19106842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 19106842 is about 4371.1373805910. The cubic root of 19106842 is about 267.3394010821.

The spelling of 19106842 in words is "nineteen million, one hundred six thousand, eight hundred forty-two".