197426064 has 80 divisors (see below), whose sum is σ = 559964160. Its totient is φ = 59441280.

The previous prime is 197426059. The next prime is 197426101. The reversal of 197426064 is 460624791.

It is a happy number.

197426064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 87057 + ... + 89295.

It is an arithmetic number, because the mean of its divisors is an integer number (6999552).

Almost surely, 2^197426064 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 197426064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279982080).

197426064 is an abundant number, since it is smaller than the sum of its proper divisors (362538096).

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

197426064 is a wasteful number, since it uses less digits than its factorization.

197426064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 197426064 is about 14050.8385514887. The cubic root of 197426064 is about 582.2839629398.

The spelling of 197426064 in words is "one hundred ninety-seven million, four hundred twenty-six thousand, sixty-four".