30442410 has 96 divisors (see below), whose sum is σ = 85065552. Its totient is φ = 7526400.

The previous prime is 30442331. The next prime is 30442411. The reversal of 30442410 is 1424403.

It can be written as a sum of positive squares in 8 ways, for example, as 30173049 + 269361 = 5493^2 + 519^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30442411) 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 47 ways as a sum of consecutive naturals, for example, 154432 + ... + 154628.

Almost surely, 2^30442410 is an apocalyptic number.

30442410 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30442410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42532776).

30442410 is an abundant number, since it is smaller than the sum of its proper divisors (54623142).

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

30442410 is a wasteful number, since it uses less digits than its factorization.

30442410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 30442410 is about 5517.4640914101. The cubic root of 30442410 is about 312.2432151881.

Adding to 30442410 its reverse (1424403), we get a palindrome (31866813).

The spelling of 30442410 in words is "thirty million, four hundred forty-two thousand, four hundred ten".