196390940 has 48 divisors (see below), whose sum is σ = 422604000. Its totient is φ = 76637952.

The previous prime is 196390927. The next prime is 196390969. The reversal of 196390940 is 49093691.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175262 + ... + 176378.

It is an arithmetic number, because the mean of its divisors is an integer number (8804250).

Almost surely, 2^196390940 is an apocalyptic number.

196390940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196390940 is an abundant number, since it is smaller than the sum of its proper divisors (226213060).

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

196390940 is a wasteful number, since it uses less digits than its factorization.

196390940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1332 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 196390940 is about 14013.9551875978. The cubic root of 196390940 is about 581.2645220868.

The spelling of 196390940 in words is "one hundred ninety-six million, three hundred ninety thousand, nine hundred forty".