197144904 has 64 divisors (see below), whose sum is σ = 539136000. Its totient is φ = 59577920.

The previous prime is 197144881. The next prime is 197144923. The reversal of 197144904 is 409441791.

It is a super-2 number, since 2×197144904² = 77732226346338432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125677 + ... + 127235.

It is an arithmetic number, because the mean of its divisors is an integer number (8424000).

Almost surely, 2^197144904 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 197144904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269568000).

197144904 is an abundant number, since it is smaller than the sum of its proper divisors (341991096).

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

197144904 is a wasteful number, since it uses less digits than its factorization.

197144904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 197144904 is about 14040.8298900029. The cubic root of 197144904 is about 582.0074159729.

The spelling of 197144904 in words is "one hundred ninety-seven million, one hundred forty-four thousand, nine hundred four".