196287390 has 96 divisors (see below), whose sum is σ = 554351616. Its totient is φ = 47900160.

The previous prime is 196287383. The next prime is 196287397. The reversal of 196287390 is 93782691.

196287390 is a `hidden beast` number, since 19 + 628 + 7 + 3 + 9 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (196287383) and next prime (196287397).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196287397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147930 + ... + 149250.

It is an arithmetic number, because the mean of its divisors is an integer number (5774496).

Almost surely, 2^196287390 is an apocalyptic number.

196287390 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 196287390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277175808).

196287390 is an abundant number, since it is smaller than the sum of its proper divisors (358064226).

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

196287390 is a wasteful number, since it uses less digits than its factorization.

196287390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1471 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 196287390 is about 14010.2601688905. The cubic root of 196287390 is about 581.1623440484.

The spelling of 196287390 in words is "one hundred ninety-six million, two hundred eighty-seven thousand, three hundred ninety".