197953420 has 48 divisors (see below), whose sum is σ = 491480640. Its totient is φ = 65528064.

The previous prime is 197953411. The next prime is 197953421. The reversal of 197953420 is 24359791.

197953420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (197953421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20319 + ... + 28438.

It is an arithmetic number, because the mean of its divisors is an integer number (10239180).

Almost surely, 2^197953420 is an apocalyptic number.

197953420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197953420 is an abundant number, since it is smaller than the sum of its proper divisors (293527220).

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

197953420 is a wasteful number, since it uses less digits than its factorization.

197953420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48802 (or 48800 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 197953420 is about 14069.5920338864. The cubic root of 197953420 is about 582.8019592786.

The spelling of 197953420 in words is "one hundred ninety-seven million, nine hundred fifty-three thousand, four hundred twenty".