197914920 has 192 divisors, whose sum is σ = 699814080. Its totient is φ = 44642304.

The previous prime is 197914909. The next prime is 197914957. The reversal of 197914920 is 29419791.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 570187 + ... + 570533.

It is an arithmetic number, because the mean of its divisors is an integer number (3644865).

Almost surely, 2^197914920 is an apocalyptic number.

197914920 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 197914920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349907040).

197914920 is an abundant number, since it is smaller than the sum of its proper divisors (501899160).

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

197914920 is a wasteful number, since it uses less digits than its factorization.

197914920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 197914920 is about 14068.2237684791. The cubic root of 197914920 is about 582.7641737393.

The spelling of 197914920 in words is "one hundred ninety-seven million, nine hundred fourteen thousand, nine hundred twenty".