197478400 has 288 divisors, whose sum is σ = 609336000. Its totient is φ = 61931520.

The previous prime is 197478397. The next prime is 197478467. The reversal of 197478400 is 4874791.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6809586 + ... + 6809614.

It is an arithmetic number, because the mean of its divisors is an integer number (2115750).

Almost surely, 2^197478400 is an apocalyptic number.

197478400 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 197478400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304668000).

197478400 is an abundant number, since it is smaller than the sum of its proper divisors (411857600).

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

197478400 is a wasteful number, since it uses less digits than its factorization.

197478400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 197478400 is about 14052.7008080298. The cubic root of 197478400 is about 582.3354112650.

The spelling of 197478400 in words is "one hundred ninety-seven million, four hundred seventy-eight thousand, four hundred".