196772790 has 64 divisors (see below), whose sum is σ = 501909696. Its totient is φ = 49201152.

The previous prime is 196772777. The next prime is 196772819. The reversal of 196772790 is 97277691.

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, 179484 + ... + 180576.

It is an arithmetic number, because the mean of its divisors is an integer number (7842339).

Almost surely, 2^196772790 is an apocalyptic number.

196772790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 196772790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250954848).

196772790 is an abundant number, since it is smaller than the sum of its proper divisors (305136906).

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

196772790 is a wasteful number, since it uses less digits than its factorization.

196772790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473.

The product of its (nonzero) digits is 333396, while the sum is 48.

The square root of 196772790 is about 14027.5724913472. The cubic root of 196772790 is about 581.6410027274.

The spelling of 196772790 in words is "one hundred ninety-six million, seven hundred seventy-two thousand, seven hundred ninety".