30244428 has 120 divisors (see below), whose sum is σ = 88426800. Its totient is φ = 8989056.

The previous prime is 30244393. The next prime is 30244433. The reversal of 30244428 is 82444203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1591803 + ... + 1591821.

It is an arithmetic number, because the mean of its divisors is an integer number (736890).

Almost surely, 2^30244428 is an apocalyptic number.

30244428 is a gapful number since it is divisible by the number (38) 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 30244428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44213400).

30244428 is an abundant number, since it is smaller than the sum of its proper divisors (58182372).

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

30244428 is a wasteful number, since it uses less digits than its factorization.

30244428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 30244428 is about 5499.4934312171. The cubic root of 30244428 is about 311.5648519588.

The spelling of 30244428 in words is "thirty million, two hundred forty-four thousand, four hundred twenty-eight".