197025920 has 256 divisors, whose sum is σ = 616896000. Its totient is φ = 58392576.

The previous prime is 197025911. The next prime is 197025929. The reversal of 197025920 is 29520791.

It is an interprime number because it is at equal distance from previous prime (197025911) and next prime (197025929).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197025929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 989981 + ... + 990179.

It is an arithmetic number, because the mean of its divisors is an integer number (2409750).

Almost surely, 2^197025920 is an apocalyptic number.

197025920 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 197025920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308448000).

197025920 is an abundant number, since it is smaller than the sum of its proper divisors (419870080).

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

197025920 is a wasteful number, since it uses less digits than its factorization.

197025920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 197025920 is about 14036.5921790155. The cubic root of 197025920 is about 581.8903049796.

The spelling of 197025920 in words is "one hundred ninety-seven million, twenty-five thousand, nine hundred twenty".