19615042 has 16 divisors (see below), whose sum is σ = 31259520. Its totient is φ = 9199168.

The previous prime is 19615031. The next prime is 19615061. The reversal of 19615042 is 24051691.

It is a self number, because there is not a number n which added to its sum of digits gives 19615042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11403 + ... + 13009.

It is an arithmetic number, because the mean of its divisors is an integer number (1953720).

Almost surely, 2^19615042 is an apocalyptic number.

19615042 is a deficient number, since it is larger than the sum of its proper divisors (11644478).

19615042 is a wasteful number, since it uses less digits than its factorization.

19615042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 19615042 is about 4428.8872191556. The cubic root of 19615042 is about 269.6889055258.

The spelling of 19615042 in words is "nineteen million, six hundred fifteen thousand, forty-two".