30484836 has 72 divisors (see below), whose sum is σ = 81128320. Its totient is φ = 10007712.

The previous prime is 30484819. The next prime is 30484837. The reversal of 30484836 is 63848403.

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 30484836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30484837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76590 + ... + 76986.

Almost surely, 2^30484836 is an apocalyptic number.

30484836 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 30484836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40564160).

30484836 is an abundant number, since it is smaller than the sum of its proper divisors (50643484).

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

30484836 is a wasteful number, since it uses less digits than its factorization.

30484836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 30484836 is about 5521.3074538555. The cubic root of 30484836 is about 312.3882002207.

The spelling of 30484836 in words is "thirty million, four hundred eighty-four thousand, eight hundred thirty-six".