196290540 has 84 divisors (see below), whose sum is σ = 618078384. Its totient is φ = 52340256.

The previous prime is 196290527. The next prime is 196290541. The reversal of 196290540 is 45092691.

196290540 is a `hidden beast` number, since 1 + 96 + 29 + 0 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 196290495 and 196290504.

It is not an unprimeable number, because it can be changed into a prime (196290541) 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 27 ways as a sum of consecutive naturals, for example, 7849 + ... + 21311.

It is an arithmetic number, because the mean of its divisors is an integer number (7358076).

Almost surely, 2^196290540 is an apocalyptic number.

196290540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196290540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309039192).

196290540 is an abundant number, since it is smaller than the sum of its proper divisors (421787844).

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

196290540 is a wasteful number, since it uses less digits than its factorization.

196290540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13490 (or 13473 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 196290540 is about 14010.3725860521. The cubic root of 196290540 is about 581.1654528431.

The spelling of 196290540 in words is "one hundred ninety-six million, two hundred ninety thousand, five hundred forty".