19201914 has 16 divisors (see below), whose sum is σ = 42671040. Its totient is φ = 6400620.

The previous prime is 19201907. The next prime is 19201921. The reversal of 19201914 is 41910291.

It is an interprime number because it is at equal distance from previous prime (19201907) and next prime (19201921).

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

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, 177742 + ... + 177849.

It is an arithmetic number, because the mean of its divisors is an integer number (2666940).

Almost surely, 2^19201914 is an apocalyptic number.

19201914 is an abundant number, since it is smaller than the sum of its proper divisors (23469126).

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

19201914 is a wasteful number, since it uses less digits than its factorization.

19201914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355602 (or 355596 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 19201914 is about 4381.9988589684. The cubic root of 19201914 is about 267.7820776168.

The spelling of 19201914 in words is "nineteen million, two hundred one thousand, nine hundred fourteen".