195400490 has 16 divisors (see below), whose sum is σ = 352176552. Its totient is φ = 78058944.

The previous prime is 195400489. The next prime is 195400531. The reversal of 195400490 is 94004591.

195400490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 129026881 + 66373609 = 11359^2 + 8147^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4289 + ... + 20228.

Almost surely, 2^195400490 is an apocalyptic number.

195400490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195400490 is a deficient number, since it is larger than the sum of its proper divisors (156776062).

195400490 is a wasteful number, since it uses less digits than its factorization.

195400490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25321.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 195400490 is about 13978.5725308416. The cubic root of 195400490 is about 580.2857193132.

The spelling of 195400490 in words is "one hundred ninety-five million, four hundred thousand, four hundred ninety".