197244738 has 24 divisors (see below), whose sum is σ = 449857200. Its totient is φ = 62287704.

The previous prime is 197244731. The next prime is 197244767. The reversal of 197244738 is 837442791.

197244738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 197244693 and 197244702.

It is not an unprimeable number, because it can be changed into a prime (197244731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288028 + ... + 288711.

It is an arithmetic number, because the mean of its divisors is an integer number (18744050).

Almost surely, 2^197244738 is an apocalyptic number.

197244738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

197244738 is an abundant number, since it is smaller than the sum of its proper divisors (252612462).

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

197244738 is a wasteful number, since it uses less digits than its factorization.

197244738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576766 (or 576763 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 197244738 is about 14044.3845717781. The cubic root of 197244738 is about 582.1056420695.

The spelling of 197244738 in words is "one hundred ninety-seven million, two hundred forty-four thousand, seven hundred thirty-eight".