19148700 has 144 divisors (see below), whose sum is σ = 59996160. Its totient is φ = 4704000.

The previous prime is 19148699. The next prime is 19148737. The reversal of 19148700 is 784191.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269665 + ... + 269735.

It is an arithmetic number, because the mean of its divisors is an integer number (416640).

Almost surely, 2^19148700 is an apocalyptic number.

19148700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19148700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29998080).

19148700 is an abundant number, since it is smaller than the sum of its proper divisors (40847460).

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

19148700 is a wasteful number, since it uses less digits than its factorization.

19148700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 19148700 is about 4375.9227598302. The cubic root of 19148700 is about 267.5344818274.

The spelling of 19148700 in words is "nineteen million, one hundred forty-eight thousand, seven hundred".