30730896 has 120 divisors (see below), whose sum is σ = 100717760. Its totient is φ = 8563968.

The previous prime is 30730877. The next prime is 30730901. The reversal of 30730896 is 69803703.

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 30730896.

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, 42990 + ... + 43698.

Almost surely, 2^30730896 is an apocalyptic number.

30730896 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 30730896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50358880).

30730896 is an abundant number, since it is smaller than the sum of its proper divisors (69986864).

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

30730896 is a wasteful number, since it uses less digits than its factorization.

30730896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 30730896 is about 5543.5454359101. The cubic root of 30730896 is about 313.2264350397.

It can be divided in two parts, 30730 and 896, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 30730896 in words is "thirty million, seven hundred thirty thousand, eight hundred ninety-six".