197980464 has 80 divisors (see below), whose sum is σ = 560499840. Its totient is φ = 59719680.

The previous prime is 197980421. The next prime is 197980501. The reversal of 197980464 is 464089791.

197980464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 134967 + ... + 136425.

It is an arithmetic number, because the mean of its divisors is an integer number (7006248).

Almost surely, 2^197980464 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 197980464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280249920).

197980464 is an abundant number, since it is smaller than the sum of its proper divisors (362519376).

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

197980464 is a wasteful number, since it uses less digits than its factorization.

197980464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738 (or 1732 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 197980464 is about 14070.5530808138. The cubic root of 197980464 is about 582.8284984825.

The spelling of 197980464 in words is "one hundred ninety-seven million, nine hundred eighty thousand, four hundred sixty-four".