19197952 has 52 divisors (see below), whose sum is σ = 39644440. Its totient is φ = 9289728.

The previous prime is 19197943. The next prime is 19197967. The reversal of 19197952 is 25979191.

It is a super-2 number, since 2×19197952² = 737122721988608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 19197899 and 19197908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176074 + ... + 176182.

Almost surely, 2^19197952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19197952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19822220).

19197952 is an abundant number, since it is smaller than the sum of its proper divisors (20446488).

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

19197952 is an equidigital number, since it uses as much as digits as its factorization.

19197952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 154 counting only the distinct ones).

The product of its digits is 51030, while the sum is 43.

The square root of 19197952 is about 4381.5467588513. The cubic root of 19197952 is about 267.7636588702.

The spelling of 19197952 in words is "nineteen million, one hundred ninety-seven thousand, nine hundred fifty-two".