195400080 has 160 divisors (see below), whose sum is σ = 684539520. Its totient is φ = 51217920.

The previous prime is 195400069. The next prime is 195400097. The reversal of 195400080 is 80004591.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131019 + ... + 132501.

It is an arithmetic number, because the mean of its divisors is an integer number (4278372).

Almost surely, 2^195400080 is an apocalyptic number.

195400080 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 195400080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342269760).

195400080 is an abundant number, since it is smaller than the sum of its proper divisors (489139440).

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

195400080 is a wasteful number, since it uses less digits than its factorization.

195400080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 195400080 is about 13978.5578655311. The cubic root of 195400080 is about 580.2853134505.

The spelling of 195400080 in words is "one hundred ninety-five million, four hundred thousand, eighty".