197922464 has 48 divisors (see below), whose sum is σ = 403758432. Its totient is φ = 95440128.

The previous prime is 197922433. The next prime is 197922467. The reversal of 197922464 is 464229791.

It is not an unprimeable number, because it can be changed into a prime (197922467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113342 + ... + 115074.

It is an arithmetic number, because the mean of its divisors is an integer number (8411634).

Almost surely, 2^197922464 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 197922464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201879216).

197922464 is an abundant number, since it is smaller than the sum of its proper divisors (205835968).

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

197922464 is a wasteful number, since it uses less digits than its factorization.

197922464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869 (or 1861 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 197922464 is about 14068.4918879033. The cubic root of 197922464 is about 582.7715781281.

The spelling of 197922464 in words is "one hundred ninety-seven million, nine hundred twenty-two thousand, four hundred sixty-four".