197263444 has 48 divisors (see below), whose sum is σ = 422851968. Its totient is φ = 78594048.

The previous prime is 197263441. The next prime is 197263457. The reversal of 197263444 is 444362791.

It is a super-2 number, since 2×197263444² = 77825732677482272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197263397 and 197263406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197263441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37012 + ... + 42004.

It is an arithmetic number, because the mean of its divisors is an integer number (8809416).

Almost surely, 2^197263444 is an apocalyptic number.

197263444 is a gapful number since it is divisible by the number (14) 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 197263444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211425984).

197263444 is an abundant number, since it is smaller than the sum of its proper divisors (225588524).

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

197263444 is a wasteful number, since it uses less digits than its factorization.

197263444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104 (or 5102 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 197263444 is about 14045.0505161071. The cubic root of 197263444 is about 582.1240431078.

The spelling of 197263444 in words is "one hundred ninety-seven million, two hundred sixty-three thousand, four hundred forty-four".