30520296 has 96 divisors (see below), whose sum is σ = 87609600. Its totient is φ = 9582720.

The previous prime is 30520261. The next prime is 30520331. The reversal of 30520296 is 69202503.

It is an interprime number because it is at equal distance from previous prime (30520261) and next prime (30520331).

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, 97981 + ... + 98291.

It is an arithmetic number, because the mean of its divisors is an integer number (912600).

Almost surely, 2^30520296 is an apocalyptic number.

30520296 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 30520296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43804800).

30520296 is an abundant number, since it is smaller than the sum of its proper divisors (57089304).

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

30520296 is a wasteful number, since it uses less digits than its factorization.

30520296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 30520296 is about 5524.5177165070. The cubic root of 30520296 is about 312.5092767379.

Adding to 30520296 its reverse (69202503), we get a palindrome (99722799).

The spelling of 30520296 in words is "thirty million, five hundred twenty thousand, two hundred ninety-six".