197403090 has 32 divisors (see below), whose sum is σ = 477968256. Its totient is φ = 52174080.

The previous prime is 197403079. The next prime is 197403091. The reversal of 197403090 is 90304791.

It is not an unprimeable number, because it can be changed into a prime (197403091) 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, 25726 + ... + 32505.

It is an arithmetic number, because the mean of its divisors is an integer number (14936508).

Almost surely, 2^197403090 is an apocalyptic number.

197403090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197403090 is an abundant number, since it is smaller than the sum of its proper divisors (280565166).

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

197403090 is a wasteful number, since it uses less digits than its factorization.

197403090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58354.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 197403090 is about 14050.0209964256. The cubic root of 197403090 is about 582.2613757318.

The spelling of 197403090 in words is "one hundred ninety-seven million, four hundred three thousand, ninety".