19102742 has 16 divisors (see below), whose sum is σ = 30032640. Its totient is φ = 9095592.

The previous prime is 19102669. The next prime is 19102757. The reversal of 19102742 is 24720191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11309 + ... + 12887.

It is an arithmetic number, because the mean of its divisors is an integer number (1877040).

Almost surely, 2^19102742 is an apocalyptic number.

19102742 is a deficient number, since it is larger than the sum of its proper divisors (10929898).

19102742 is a wasteful number, since it uses less digits than its factorization.

19102742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 19102742 is about 4370.6683699407. The cubic root of 19102742 is about 267.3202775669.

The spelling of 19102742 in words is "nineteen million, one hundred two thousand, seven hundred forty-two".