30207996 has 72 divisors (see below), whose sum is σ = 93990624. Its totient is φ = 7966080.

The previous prime is 30207979. The next prime is 30208033. The reversal of 30207996 is 69970203.

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 30207996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1335 + ... + 7886.

Almost surely, 2^30207996 is an apocalyptic number.

30207996 is a gapful number since it is divisible by the number (36) 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 30207996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46995312).

30207996 is an abundant number, since it is smaller than the sum of its proper divisors (63782628).

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

30207996 is a wasteful number, since it uses less digits than its factorization.

30207996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9251 (or 9246 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 30207996 is about 5496.1801280526. The cubic root of 30207996 is about 311.4396995234.

The spelling of 30207996 in words is "thirty million, two hundred seven thousand, nine hundred ninety-six".