30557196 has 48 divisors (see below), whose sum is σ = 81786880. Its totient is φ = 9856080.

The previous prime is 30557183. The next prime is 30557201. The reversal of 30557196 is 69175503.

It is a happy number.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30557196.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216 + ... + 7911.

Almost surely, 2^30557196 is an apocalyptic number.

30557196 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30557196 is an abundant number, since it is smaller than the sum of its proper divisors (51229684).

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

30557196 is a wasteful number, since it uses less digits than its factorization.

30557196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9171 (or 9163 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 30557196 is about 5527.8563657172. The cubic root of 30557196 is about 312.6351705375.

The spelling of 30557196 in words is "thirty million, five hundred fifty-seven thousand, one hundred ninety-six".