196406290 has 16 divisors (see below), whose sum is σ = 353905920. Its totient is φ = 78479280.

The previous prime is 196406267. The next prime is 196406291. The reversal of 196406290 is 92604691.

196406290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

196406290 is a nontrivial binomial coefficient, being equal to C(19820, 2).

It is not an unprimeable number, because it can be changed into a prime (196406291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 19819.

It is an arithmetic number, because the mean of its divisors is an integer number (22119120).

Almost surely, 2^196406290 is an apocalyptic number.

196406290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196406290 is the 19819-th triangular number and also the 9910-th hexagonal number.

196406290 is the 6607-th centered nonagonal number.

196406290 is a deficient number, since it is larger than the sum of its proper divisors (157499630).

196406290 is a wasteful number, since it uses less digits than its factorization.

196406290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20817.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 196406290 is about 14014.5028452671. The cubic root of 196406290 is about 581.2796656536.

The spelling of 196406290 in words is "one hundred ninety-six million, four hundred six thousand, two hundred ninety".