197424828 has 36 divisors (see below), whose sum is σ = 501850440. Its totient is φ = 65438496.

The previous prime is 197424827. The next prime is 197424869. The reversal of 197424828 is 828424791.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197424823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8875 + ... + 21762.

It is an arithmetic number, because the mean of its divisors is an integer number (13940290).

Almost surely, 2^197424828 is an apocalyptic number.

197424828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

197424828 is an abundant number, since it is smaller than the sum of its proper divisors (304425612).

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

197424828 is a wasteful number, since it uses less digits than its factorization.

197424828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30826 (or 30821 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 197424828 is about 14050.7945682798. The cubic root of 197424828 is about 582.2827477938.

The spelling of 197424828 in words is "one hundred ninety-seven million, four hundred twenty-four thousand, eight hundred twenty-eight".