196293840 has 40 divisors (see below), whose sum is σ = 608511648. Its totient is φ = 52344960.

The previous prime is 196293833. The next prime is 196293857. The reversal of 196293840 is 48392691.

196293840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 196293792 and 196293801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408706 + ... + 409185.

Almost surely, 2^196293840 is an apocalyptic number.

196293840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196293840 is an abundant number, since it is smaller than the sum of its proper divisors (412217808).

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

196293840 is a wasteful number, since it uses less digits than its factorization.

196293840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817907 (or 817901 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 196293840 is about 14010.4903554444. The cubic root of 196293840 is about 581.1687096399.

The spelling of 196293840 in words is "one hundred ninety-six million, two hundred ninety-three thousand, eight hundred forty".