197501920 has 384 divisors, whose sum is σ = 658409472. Its totient is φ = 54067200.

The previous prime is 197501917. The next prime is 197501921. The reversal of 197501920 is 29105791.

197501920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197501921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4817100 + ... + 4817140.

It is an arithmetic number, because the mean of its divisors is an integer number (1714608).

Almost surely, 2^197501920 is an apocalyptic number.

197501920 is a gapful number since it is divisible by the number (10) 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 197501920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329204736).

197501920 is an abundant number, since it is smaller than the sum of its proper divisors (460907552).

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

197501920 is a wasteful number, since it uses less digits than its factorization.

197501920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 197501920 is about 14053.5376329236. The cubic root of 197501920 is about 582.3585293801.

The spelling of 197501920 in words is "one hundred ninety-seven million, five hundred one thousand, nine hundred twenty".