30350340 has 72 divisors (see below), whose sum is σ = 96078528. Its totient is φ = 7740480.

The previous prime is 30350329. The next prime is 30350351. The reversal of 30350340 is 4305303.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30350329) and next prime (30350351).

It is a super-2 number, since 2×30350340² = 1842286276231200, which contains 22 as substring.

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

It is an unprimeable number.

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, 475 + ... + 7805.

It is an arithmetic number, because the mean of its divisors is an integer number (1334424).

Almost surely, 2^30350340 is an apocalyptic number.

30350340 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 30350340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48039264).

30350340 is an abundant number, since it is smaller than the sum of its proper divisors (65728188).

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

30350340 is a wasteful number, since it uses less digits than its factorization.

30350340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7369 (or 7364 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 30350340 is about 5509.1142663771. The cubic root of 30350340 is about 311.9281146024.

Adding to 30350340 its reverse (4305303), we get a palindrome (34655643).

The spelling of 30350340 in words is "thirty million, three hundred fifty thousand, three hundred forty".