19041642 has 20 divisors (see below), whose sum is σ = 42667746. Its totient is φ = 6347160.

The previous prime is 19041637. The next prime is 19041653. The reversal of 19041642 is 24614091.

19041642 is a `hidden beast` number, since 19 + 0 + 4 + 1 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18740241 + 301401 = 4329^2 + 549^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 58609 + ... + 58932.

Almost surely, 2^19041642 is an apocalyptic number.

19041642 is an abundant number, since it is smaller than the sum of its proper divisors (23626104).

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

19041642 is a wasteful number, since it uses less digits than its factorization.

19041642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117555 (or 117546 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 19041642 is about 4363.6729941644. The cubic root of 19041642 is about 267.0349657528.

It can be divided in two parts, 19041 and 642, that added together give a 9-th power (19683 = 3⁹).

The spelling of 19041642 in words is "nineteen million, forty-one thousand, six hundred forty-two".