19601242 has 4 divisors (see below), whose sum is σ = 29401866. Its totient is φ = 9800620.

The previous prime is 19601237. The next prime is 19601251. The reversal of 19601242 is 24210691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24210691 = 37 ⋅654343.

It can be written as a sum of positive squares in only one way, i.e., 10182481 + 9418761 = 3191^2 + 3069^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900309 + ... + 4900312.

Almost surely, 2^19601242 is an apocalyptic number.

19601242 is a deficient number, since it is larger than the sum of its proper divisors (9800624).

19601242 is an equidigital number, since it uses as much as digits as its factorization.

19601242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9800623.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 19601242 is about 4427.3289916156. The cubic root of 19601242 is about 269.6256448909.

The spelling of 19601242 in words is "nineteen million, six hundred one thousand, two hundred forty-two".