19611042 has 32 divisors (see below), whose sum is σ = 44651520. Its totient is φ = 5683920.

The previous prime is 19611029. The next prime is 19611043. The reversal of 19611042 is 24011691.

It is not an unprimeable number, because it can be changed into a prime (19611043) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 4942 + ... + 7977.

It is an arithmetic number, because the mean of its divisors is an integer number (1395360).

Almost surely, 2^19611042 is an apocalyptic number.

19611042 is an abundant number, since it is smaller than the sum of its proper divisors (25040478).

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

19611042 is a wasteful number, since it uses less digits than its factorization.

19611042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12958.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 19611042 is about 4428.4356154290. The cubic root of 19611042 is about 269.6705721644.

It can be divided in two parts, 1961 and 1042, that added together give a palindrome (3003).

The spelling of 19611042 in words is "nineteen million, six hundred eleven thousand, forty-two".