196436352840 has 384 divisors, whose sum is σ = 752200162560. Its totient is φ = 40663074816.

The previous prime is 196436352823. The next prime is 196436352869. The reversal of 196436352840 is 48253634691.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4027077 + ... + 4075563.

It is an arithmetic number, because the mean of its divisors is an integer number (1958854590).

Almost surely, 2^196436352840 is an apocalyptic number.

196436352840 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 196436352840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376100081280).

196436352840 is an abundant number, since it is smaller than the sum of its proper divisors (555763809720).

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

196436352840 is a wasteful number, since it uses less digits than its factorization.

196436352840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48581 (or 48570 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 196436352840 in words is "one hundred ninety-six billion, four hundred thirty-six million, three hundred fifty-two thousand, eight hundred forty".