19495641 has 24 divisors (see below), whose sum is σ = 29260000. Its totient is φ = 11531520.

The previous prime is 19495639. The next prime is 19495667. The reversal of 19495641 is 14659491.

It is not a de Polignac number, because 19495641 - 2¹ = 19495639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19495641.

It is not an unprimeable number, because it can be changed into a prime (19495681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14985 + ... + 16233.

Almost surely, 2^19495641 is an apocalyptic number.

19495641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19495641 is a deficient number, since it is larger than the sum of its proper divisors (9764359).

19495641 is a wasteful number, since it uses less digits than its factorization.

19495641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1317 (or 1306 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 19495641 is about 4415.3868460193. The cubic root of 19495641 is about 269.1405731920.

The spelling of 19495641 in words is "nineteen million, four hundred ninety-five thousand, six hundred forty-one".