197259456 has 56 divisors (see below), whose sum is σ = 523941040. Its totient is φ = 65498112.

The previous prime is 197259451. The next prime is 197259493. The reversal of 197259456 is 654952791.

It is a super-2 number, since 2×197259456² = 77822585962831872, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197259451) 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, 51330 + ... + 55038.

It is an arithmetic number, because the mean of its divisors is an integer number (9356090).

Almost surely, 2^197259456 is an apocalyptic number.

197259456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197259456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261970520).

197259456 is an abundant number, since it is smaller than the sum of its proper divisors (326681584).

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

197259456 is a wasteful number, since it uses less digits than its factorization.

197259456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001 (or 3991 counting only the distinct ones).

The product of its digits is 680400, while the sum is 48.

The square root of 197259456 is about 14044.9085436681. The cubic root of 197259456 is about 582.1201202212.

The spelling of 197259456 in words is "one hundred ninety-seven million, two hundred fifty-nine thousand, four hundred fifty-six".