30029280 has 96 divisors (see below), whose sum is σ = 95999904. Its totient is φ = 7888896.

The previous prime is 30029269. The next prime is 30029281. The reversal of 30029280 is 8292003.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30029280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30029281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34612 + ... + 35468.

It is an arithmetic number, because the mean of its divisors is an integer number (999999).

Almost surely, 2^30029280 is an apocalyptic number.

30029280 is a gapful number since it is divisible by the number (30) 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 30029280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47999952).

30029280 is an abundant number, since it is smaller than the sum of its proper divisors (65970624).

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

30029280 is a wasteful number, since it uses less digits than its factorization.

30029280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 30029280 is about 5479.8978092662. The cubic root of 30029280 is about 310.8243063566.

The spelling of 30029280 in words is "thirty million, twenty-nine thousand, two hundred eighty".