196894090 has 16 divisors (see below), whose sum is σ = 354573288. Its totient is φ = 78721216.

The previous prime is 196894073. The next prime is 196894091. The reversal of 196894090 is 90498691.

It can be written as a sum of positive squares in 4 ways, for example, as 137804121 + 59089969 = 11739^2 + 7687^2 .

It is a super-3 number, since 3×196894090³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196894090.

It is not an unprimeable number, because it can be changed into a prime (196894091) 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, 32544 + ... + 38116.

Almost surely, 2^196894090 is an apocalyptic number.

196894090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196894090 is a deficient number, since it is larger than the sum of its proper divisors (157679198).

196894090 is a wasteful number, since it uses less digits than its factorization.

196894090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9113.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 196894090 is about 14031.8954528602. The cubic root of 196894090 is about 581.7604951314.

The spelling of 196894090 in words is "one hundred ninety-six million, eight hundred ninety-four thousand, ninety".