19995234 has 48 divisors (see below), whose sum is σ = 48558528. Its totient is φ = 5462688.

The previous prime is 19995169. The next prime is 19995253. The reversal of 19995234 is 43259991.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5284 + ... + 8240.

It is an arithmetic number, because the mean of its divisors is an integer number (1011636).

Almost surely, 2^19995234 is an apocalyptic number.

19995234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19995234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24279264).

19995234 is an abundant number, since it is smaller than the sum of its proper divisors (28563294).

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

19995234 is a wasteful number, since it uses less digits than its factorization.

19995234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999 (or 2992 counting only the distinct ones).

The product of its digits is 87480, while the sum is 42.

The square root of 19995234 is about 4471.6030682519. The cubic root of 19995234 is about 271.4201984226.

The spelling of 19995234 in words is "nineteen million, nine hundred ninety-five thousand, two hundred thirty-four".