197738496 has 150 divisors (see below), whose sum is σ = 594721050. Its totient is φ = 65470464.

The previous prime is 197738423. The next prime is 197738533. The reversal of 197738496 is 694837791.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 132710400 + 65028096 = 11520^2 + 8064^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (2286144) is a multiple of the sum of its prime factors (189).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1327030 + ... + 1327178.

It is an arithmetic number, because the mean of its divisors is an integer number (3964807).

Almost surely, 2^197738496 is an apocalyptic number.

197738496 is a gapful number since it is divisible by the number (16) 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 197738496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297360525).

197738496 is an abundant number, since it is smaller than the sum of its proper divisors (396982554).

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

197738496 is an frugal number, since it uses more digits than its factorization.

197738496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 154 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 197738496 is about 14061.9520693252. The cubic root of 197738496 is about 582.5909610080.

The spelling of 197738496 in words is "one hundred ninety-seven million, seven hundred thirty-eight thousand, four hundred ninety-six".