19414872 has 24 divisors (see below), whose sum is σ = 52582140. Its totient is φ = 6471600.

The previous prime is 19414859. The next prime is 19414873. The reversal of 19414872 is 27841491.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19414873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134754 + ... + 134897.

Almost surely, 2^19414872 is an apocalyptic number.

19414872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19414872 is an abundant number, since it is smaller than the sum of its proper divisors (33167268).

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

19414872 is a wasteful number, since it uses less digits than its factorization.

19414872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269663 (or 269656 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 19414872 is about 4406.2310425124. The cubic root of 19414872 is about 268.7683822292.

The spelling of 19414872 in words is "nineteen million, four hundred fourteen thousand, eight hundred seventy-two".