30040416 has 96 divisors (see below), whose sum is σ = 100154880. Its totient is φ = 8581248.

The previous prime is 30040403. The next prime is 30040427. The reversal of 30040416 is 61404003.

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 (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3565 + ... + 8531.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280).

Almost surely, 2^30040416 is an apocalyptic number.

30040416 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 30040416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50077440).

30040416 is an abundant number, since it is smaller than the sum of its proper divisors (70114464).

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

30040416 is a wasteful number, since it uses less digits than its factorization.

30040416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993 (or 4979 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30040416 is about 5480.9137924255. The cubic root of 30040416 is about 310.8627234359.

Adding to 30040416 its reverse (61404003), we get a palindrome (91444419).

The spelling of 30040416 in words is "thirty million, forty thousand, four hundred sixteen".